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1/************************************************************************
2 * Linux driver for *
3 * ICP vortex GmbH: GDT ISA/EISA/PCI Disk Array Controllers *
4 * Intel Corporation: Storage RAID Controllers *
5 * *
6 * gdth.c *
7 * Copyright (C) 1995-06 ICP vortex GmbH, Achim Leubner *
8 * Copyright (C) 2002-04 Intel Corporation *
9 * Copyright (C) 2003-06 Adaptec Inc. *
10 * <achim_leubner@adaptec.com> *
11 * *
12 * Additions/Fixes: *
13 * Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com> *
14 * Johannes Dinner <johannes_dinner@adaptec.com> *
15 * *
16 * This program is free software; you can redistribute it and/or modify *
17 * it under the terms of the GNU General Public License as published *
18 * by the Free Software Foundation; either version 2 of the License, *
19 * or (at your option) any later version. *
20 * *
21 * This program is distributed in the hope that it will be useful, *
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
24 * GNU General Public License for more details. *
25 * *
26 * You should have received a copy of the GNU General Public License *
27 * along with this kernel; if not, write to the Free Software *
28 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
29 * *
30 * Linux kernel 2.6.x supported *
31 * *
32 ************************************************************************/
33
34/* All GDT Disk Array Controllers are fully supported by this driver.
35 * This includes the PCI/EISA/ISA SCSI Disk Array Controllers and the
36 * PCI Fibre Channel Disk Array Controllers. See gdth.h for a complete
37 * list of all controller types.
38 *
39 * If you have one or more GDT3000/3020 EISA controllers with
40 * controller BIOS disabled, you have to set the IRQ values with the
41 * command line option "gdth=irq1,irq2,...", where the irq1,irq2,... are
42 * the IRQ values for the EISA controllers.
43 *
44 * After the optional list of IRQ values, other possible
45 * command line options are:
46 * disable:Y disable driver
47 * disable:N enable driver
48 * reserve_mode:0 reserve no drives for the raw service
49 * reserve_mode:1 reserve all not init., removable drives
50 * reserve_mode:2 reserve all not init. drives
51 * reserve_list:h,b,t,l,h,b,t,l,... reserve particular drive(s) with
52 * h- controller no., b- channel no.,
53 * t- target ID, l- LUN
54 * reverse_scan:Y reverse scan order for PCI controllers
55 * reverse_scan:N scan PCI controllers like BIOS
56 * max_ids:x x - target ID count per channel (1..MAXID)
57 * rescan:Y rescan all channels/IDs
58 * rescan:N use all devices found until now
59 * hdr_channel:x x - number of virtual bus for host drives
60 * shared_access:Y disable driver reserve/release protocol to
61 * access a shared resource from several nodes,
62 * appropriate controller firmware required
63 * shared_access:N enable driver reserve/release protocol
64 * probe_eisa_isa:Y scan for EISA/ISA controllers
65 * probe_eisa_isa:N do not scan for EISA/ISA controllers
66 * force_dma32:Y use only 32 bit DMA mode
67 * force_dma32:N use 64 bit DMA mode, if supported
68 *
69 * The default values are: "gdth=disable:N,reserve_mode:1,reverse_scan:N,
70 * max_ids:127,rescan:N,hdr_channel:0,
71 * shared_access:Y,probe_eisa_isa:N,force_dma32:N".
72 * Here is another example: "gdth=reserve_list:0,1,2,0,0,1,3,0,rescan:Y".
73 *
74 * When loading the gdth driver as a module, the same options are available.
75 * You can set the IRQs with "IRQ=...". However, the syntax to specify the
76 * options changes slightly. You must replace all ',' between options
77 * with ' ' and all ':' with '=' and you must use
78 * '1' in place of 'Y' and '0' in place of 'N'.
79 *
80 * Default: "modprobe gdth disable=0 reserve_mode=1 reverse_scan=0
81 * max_ids=127 rescan=0 hdr_channel=0 shared_access=0
82 * probe_eisa_isa=0 force_dma32=0"
83 * The other example: "modprobe gdth reserve_list=0,1,2,0,0,1,3,0 rescan=1".
84 */
85
86/* The meaning of the Scsi_Pointer members in this driver is as follows:
87 * ptr: Chaining
88 * this_residual: unused
89 * buffer: unused
90 * dma_handle: unused
91 * buffers_residual: unused
92 * Status: unused
93 * Message: unused
94 * have_data_in: unused
95 * sent_command: unused
96 * phase: unused
97 */
98
99
100/* interrupt coalescing */
101/* #define INT_COAL */
102
103/* statistics */
104#define GDTH_STATISTICS
105
106#include <linux/module.h>
107
108#include <linux/version.h>
109#include <linux/kernel.h>
110#include <linux/types.h>
111#include <linux/pci.h>
112#include <linux/string.h>
113#include <linux/ctype.h>
114#include <linux/ioport.h>
115#include <linux/delay.h>
116#include <linux/interrupt.h>
117#include <linux/in.h>
118#include <linux/proc_fs.h>
119#include <linux/time.h>
120#include <linux/timer.h>
121#include <linux/dma-mapping.h>
122#include <linux/list.h>
123#include <linux/mutex.h>
124#include <linux/slab.h>
125
126#ifdef GDTH_RTC
127#include <linux/mc146818rtc.h>
128#endif
129#include <linux/reboot.h>
130
131#include <asm/dma.h>
132#include <asm/io.h>
133#include <linux/uaccess.h>
134#include <linux/spinlock.h>
135#include <linux/blkdev.h>
136#include <linux/scatterlist.h>
137
138#include "scsi.h"
139#include <scsi/scsi_host.h>
140#include "gdth.h"
141
142static DEFINE_MUTEX(gdth_mutex);
143static void gdth_delay(int milliseconds);
144static void gdth_eval_mapping(u32 size, u32 *cyls, int *heads, int *secs);
145static irqreturn_t gdth_interrupt(int irq, void *dev_id);
146static irqreturn_t __gdth_interrupt(gdth_ha_str *ha,
147 int gdth_from_wait, int* pIndex);
148static int gdth_sync_event(gdth_ha_str *ha, int service, u8 index,
149 Scsi_Cmnd *scp);
150static int gdth_async_event(gdth_ha_str *ha);
151static void gdth_log_event(gdth_evt_data *dvr, char *buffer);
152
153static void gdth_putq(gdth_ha_str *ha, Scsi_Cmnd *scp, u8 priority);
154static void gdth_next(gdth_ha_str *ha);
155static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, u8 b);
156static int gdth_special_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp);
157static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, u16 source,
158 u16 idx, gdth_evt_data *evt);
159static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr);
160static void gdth_readapp_event(gdth_ha_str *ha, u8 application,
161 gdth_evt_str *estr);
162static void gdth_clear_events(void);
163
164static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
165 char *buffer, u16 count);
166static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp);
167static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, u16 hdrive);
168
169static void gdth_enable_int(gdth_ha_str *ha);
170static int gdth_test_busy(gdth_ha_str *ha);
171static int gdth_get_cmd_index(gdth_ha_str *ha);
172static void gdth_release_event(gdth_ha_str *ha);
173static int gdth_wait(gdth_ha_str *ha, int index,u32 time);
174static int gdth_internal_cmd(gdth_ha_str *ha, u8 service, u16 opcode,
175 u32 p1, u64 p2,u64 p3);
176static int gdth_search_drives(gdth_ha_str *ha);
177static int gdth_analyse_hdrive(gdth_ha_str *ha, u16 hdrive);
178
179static const char *gdth_ctr_name(gdth_ha_str *ha);
180
181static int gdth_open(struct inode *inode, struct file *filep);
182static int gdth_close(struct inode *inode, struct file *filep);
183static long gdth_unlocked_ioctl(struct file *filep, unsigned int cmd,
184 unsigned long arg);
185
186static void gdth_flush(gdth_ha_str *ha);
187static int gdth_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
188static int __gdth_queuecommand(gdth_ha_str *ha, struct scsi_cmnd *scp,
189 struct gdth_cmndinfo *cmndinfo);
190static void gdth_scsi_done(struct scsi_cmnd *scp);
191
192#ifdef DEBUG_GDTH
193static u8 DebugState = DEBUG_GDTH;
194
195#ifdef __SERIAL__
196#define MAX_SERBUF 160
197static void ser_init(void);
198static void ser_puts(char *str);
199static void ser_putc(char c);
200static int ser_printk(const char *fmt, ...);
201static char strbuf[MAX_SERBUF+1];
202#ifdef __COM2__
203#define COM_BASE 0x2f8
204#else
205#define COM_BASE 0x3f8
206#endif
207static void ser_init()
208{
209 unsigned port=COM_BASE;
210
211 outb(0x80,port+3);
212 outb(0,port+1);
213 /* 19200 Baud, if 9600: outb(12,port) */
214 outb(6, port);
215 outb(3,port+3);
216 outb(0,port+1);
217 /*
218 ser_putc('I');
219 ser_putc(' ');
220 */
221}
222
223static void ser_puts(char *str)
224{
225 char *ptr;
226
227 ser_init();
228 for (ptr=str;*ptr;++ptr)
229 ser_putc(*ptr);
230}
231
232static void ser_putc(char c)
233{
234 unsigned port=COM_BASE;
235
236 while ((inb(port+5) & 0x20)==0);
237 outb(c,port);
238 if (c==0x0a)
239 {
240 while ((inb(port+5) & 0x20)==0);
241 outb(0x0d,port);
242 }
243}
244
245static int ser_printk(const char *fmt, ...)
246{
247 va_list args;
248 int i;
249
250 va_start(args,fmt);
251 i = vsprintf(strbuf,fmt,args);
252 ser_puts(strbuf);
253 va_end(args);
254 return i;
255}
256
257#define TRACE(a) {if (DebugState==1) {ser_printk a;}}
258#define TRACE2(a) {if (DebugState==1 || DebugState==2) {ser_printk a;}}
259#define TRACE3(a) {if (DebugState!=0) {ser_printk a;}}
260
261#else /* !__SERIAL__ */
262#define TRACE(a) {if (DebugState==1) {printk a;}}
263#define TRACE2(a) {if (DebugState==1 || DebugState==2) {printk a;}}
264#define TRACE3(a) {if (DebugState!=0) {printk a;}}
265#endif
266
267#else /* !DEBUG */
268#define TRACE(a)
269#define TRACE2(a)
270#define TRACE3(a)
271#endif
272
273#ifdef GDTH_STATISTICS
274static u32 max_rq=0, max_index=0, max_sg=0;
275#ifdef INT_COAL
276static u32 max_int_coal=0;
277#endif
278static u32 act_ints=0, act_ios=0, act_stats=0, act_rq=0;
279static struct timer_list gdth_timer;
280#endif
281
282#define PTR2USHORT(a) (u16)(unsigned long)(a)
283#define GDTOFFSOF(a,b) (size_t)&(((a*)0)->b)
284#define INDEX_OK(i,t) ((i)<ARRAY_SIZE(t))
285
286#define BUS_L2P(a,b) ((b)>(a)->virt_bus ? (b-1):(b))
287
288#ifdef CONFIG_ISA
289static u8 gdth_drq_tab[4] = {5,6,7,7}; /* DRQ table */
290#endif
291#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
292static u8 gdth_irq_tab[6] = {0,10,11,12,14,0}; /* IRQ table */
293#endif
294static u8 gdth_polling; /* polling if TRUE */
295static int gdth_ctr_count = 0; /* controller count */
296static LIST_HEAD(gdth_instances); /* controller list */
297static u8 gdth_write_through = FALSE; /* write through */
298static gdth_evt_str ebuffer[MAX_EVENTS]; /* event buffer */
299static int elastidx;
300static int eoldidx;
301static int major;
302
303#define DIN 1 /* IN data direction */
304#define DOU 2 /* OUT data direction */
305#define DNO DIN /* no data transfer */
306#define DUN DIN /* unknown data direction */
307static u8 gdth_direction_tab[0x100] = {
308 DNO,DNO,DIN,DIN,DOU,DIN,DIN,DOU,DIN,DUN,DOU,DOU,DUN,DUN,DUN,DIN,
309 DNO,DIN,DIN,DOU,DIN,DOU,DNO,DNO,DOU,DNO,DIN,DNO,DIN,DOU,DNO,DUN,
310 DIN,DUN,DIN,DUN,DOU,DIN,DUN,DUN,DIN,DIN,DOU,DNO,DUN,DIN,DOU,DOU,
311 DOU,DOU,DOU,DNO,DIN,DNO,DNO,DIN,DOU,DOU,DOU,DOU,DIN,DOU,DIN,DOU,
312 DOU,DOU,DIN,DIN,DIN,DNO,DUN,DNO,DNO,DNO,DUN,DNO,DOU,DIN,DUN,DUN,
313 DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DIN,DUN,DUN,DUN,DUN,DUN,
314 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
315 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
316 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
317 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,
318 DUN,DUN,DUN,DUN,DUN,DNO,DNO,DUN,DIN,DNO,DOU,DUN,DNO,DUN,DOU,DOU,
319 DOU,DOU,DOU,DNO,DUN,DIN,DOU,DIN,DIN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
320 DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
321 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
322 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
323 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN
324};
325
326/* LILO and modprobe/insmod parameters */
327/* IRQ list for GDT3000/3020 EISA controllers */
328static int irq[MAXHA] __initdata =
329{0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
330 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
331/* disable driver flag */
332static int disable __initdata = 0;
333/* reserve flag */
334static int reserve_mode = 1;
335/* reserve list */
336static int reserve_list[MAX_RES_ARGS] =
337{0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
338 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
339 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
340/* scan order for PCI controllers */
341static int reverse_scan = 0;
342/* virtual channel for the host drives */
343static int hdr_channel = 0;
344/* max. IDs per channel */
345static int max_ids = MAXID;
346/* rescan all IDs */
347static int rescan = 0;
348/* shared access */
349static int shared_access = 1;
350/* enable support for EISA and ISA controllers */
351static int probe_eisa_isa = 0;
352/* 64 bit DMA mode, support for drives > 2 TB, if force_dma32 = 0 */
353static int force_dma32 = 0;
354
355/* parameters for modprobe/insmod */
356module_param_hw_array(irq, int, irq, NULL, 0);
357module_param(disable, int, 0);
358module_param(reserve_mode, int, 0);
359module_param_array(reserve_list, int, NULL, 0);
360module_param(reverse_scan, int, 0);
361module_param(hdr_channel, int, 0);
362module_param(max_ids, int, 0);
363module_param(rescan, int, 0);
364module_param(shared_access, int, 0);
365module_param(probe_eisa_isa, int, 0);
366module_param(force_dma32, int, 0);
367MODULE_AUTHOR("Achim Leubner");
368MODULE_LICENSE("GPL");
369
370/* ioctl interface */
371static const struct file_operations gdth_fops = {
372 .unlocked_ioctl = gdth_unlocked_ioctl,
373 .open = gdth_open,
374 .release = gdth_close,
375 .llseek = noop_llseek,
376};
377
378#include "gdth_proc.h"
379#include "gdth_proc.c"
380
381static gdth_ha_str *gdth_find_ha(int hanum)
382{
383 gdth_ha_str *ha;
384
385 list_for_each_entry(ha, &gdth_instances, list)
386 if (hanum == ha->hanum)
387 return ha;
388
389 return NULL;
390}
391
392static struct gdth_cmndinfo *gdth_get_cmndinfo(gdth_ha_str *ha)
393{
394 struct gdth_cmndinfo *priv = NULL;
395 unsigned long flags;
396 int i;
397
398 spin_lock_irqsave(&ha->smp_lock, flags);
399
400 for (i=0; i<GDTH_MAXCMDS; ++i) {
401 if (ha->cmndinfo[i].index == 0) {
402 priv = &ha->cmndinfo[i];
403 memset(priv, 0, sizeof(*priv));
404 priv->index = i+1;
405 break;
406 }
407 }
408
409 spin_unlock_irqrestore(&ha->smp_lock, flags);
410
411 return priv;
412}
413
414static void gdth_put_cmndinfo(struct gdth_cmndinfo *priv)
415{
416 BUG_ON(!priv);
417 priv->index = 0;
418}
419
420static void gdth_delay(int milliseconds)
421{
422 if (milliseconds == 0) {
423 udelay(1);
424 } else {
425 mdelay(milliseconds);
426 }
427}
428
429static void gdth_scsi_done(struct scsi_cmnd *scp)
430{
431 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
432 int internal_command = cmndinfo->internal_command;
433
434 TRACE2(("gdth_scsi_done()\n"));
435
436 gdth_put_cmndinfo(cmndinfo);
437 scp->host_scribble = NULL;
438
439 if (internal_command)
440 complete((struct completion *)scp->request);
441 else
442 scp->scsi_done(scp);
443}
444
445int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd,
446 int timeout, u32 *info)
447{
448 gdth_ha_str *ha = shost_priv(sdev->host);
449 Scsi_Cmnd *scp;
450 struct gdth_cmndinfo cmndinfo;
451 DECLARE_COMPLETION_ONSTACK(wait);
452 int rval;
453
454 scp = kzalloc(sizeof(*scp), GFP_KERNEL);
455 if (!scp)
456 return -ENOMEM;
457
458 scp->sense_buffer = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
459 if (!scp->sense_buffer) {
460 kfree(scp);
461 return -ENOMEM;
462 }
463
464 scp->device = sdev;
465 memset(&cmndinfo, 0, sizeof(cmndinfo));
466
467 /* use request field to save the ptr. to completion struct. */
468 scp->request = (struct request *)&wait;
469 scp->cmd_len = 12;
470 scp->cmnd = cmnd;
471 cmndinfo.priority = IOCTL_PRI;
472 cmndinfo.internal_cmd_str = gdtcmd;
473 cmndinfo.internal_command = 1;
474
475 TRACE(("__gdth_execute() cmd 0x%x\n", scp->cmnd[0]));
476 __gdth_queuecommand(ha, scp, &cmndinfo);
477
478 wait_for_completion(&wait);
479
480 rval = cmndinfo.status;
481 if (info)
482 *info = cmndinfo.info;
483 kfree(scp->sense_buffer);
484 kfree(scp);
485 return rval;
486}
487
488int gdth_execute(struct Scsi_Host *shost, gdth_cmd_str *gdtcmd, char *cmnd,
489 int timeout, u32 *info)
490{
491 struct scsi_device *sdev = scsi_get_host_dev(shost);
492 int rval = __gdth_execute(sdev, gdtcmd, cmnd, timeout, info);
493
494 scsi_free_host_dev(sdev);
495 return rval;
496}
497
498static void gdth_eval_mapping(u32 size, u32 *cyls, int *heads, int *secs)
499{
500 *cyls = size /HEADS/SECS;
501 if (*cyls <= MAXCYLS) {
502 *heads = HEADS;
503 *secs = SECS;
504 } else { /* too high for 64*32 */
505 *cyls = size /MEDHEADS/MEDSECS;
506 if (*cyls <= MAXCYLS) {
507 *heads = MEDHEADS;
508 *secs = MEDSECS;
509 } else { /* too high for 127*63 */
510 *cyls = size /BIGHEADS/BIGSECS;
511 *heads = BIGHEADS;
512 *secs = BIGSECS;
513 }
514 }
515}
516
517/* controller search and initialization functions */
518#ifdef CONFIG_EISA
519static int __init gdth_search_eisa(u16 eisa_adr)
520{
521 u32 id;
522
523 TRACE(("gdth_search_eisa() adr. %x\n",eisa_adr));
524 id = inl(eisa_adr+ID0REG);
525 if (id == GDT3A_ID || id == GDT3B_ID) { /* GDT3000A or GDT3000B */
526 if ((inb(eisa_adr+EISAREG) & 8) == 0)
527 return 0; /* not EISA configured */
528 return 1;
529 }
530 if (id == GDT3_ID) /* GDT3000 */
531 return 1;
532
533 return 0;
534}
535#endif /* CONFIG_EISA */
536
537#ifdef CONFIG_ISA
538static int __init gdth_search_isa(u32 bios_adr)
539{
540 void __iomem *addr;
541 u32 id;
542
543 TRACE(("gdth_search_isa() bios adr. %x\n",bios_adr));
544 if ((addr = ioremap(bios_adr+BIOS_ID_OFFS, sizeof(u32))) != NULL) {
545 id = readl(addr);
546 iounmap(addr);
547 if (id == GDT2_ID) /* GDT2000 */
548 return 1;
549 }
550 return 0;
551}
552#endif /* CONFIG_ISA */
553
554#ifdef CONFIG_PCI
555
556static bool gdth_search_vortex(u16 device)
557{
558 if (device <= PCI_DEVICE_ID_VORTEX_GDT6555)
559 return true;
560 if (device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP &&
561 device <= PCI_DEVICE_ID_VORTEX_GDTMAXRP)
562 return true;
563 if (device == PCI_DEVICE_ID_VORTEX_GDTNEWRX ||
564 device == PCI_DEVICE_ID_VORTEX_GDTNEWRX2)
565 return true;
566 return false;
567}
568
569static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out);
570static int gdth_pci_init_one(struct pci_dev *pdev,
571 const struct pci_device_id *ent);
572static void gdth_pci_remove_one(struct pci_dev *pdev);
573static void gdth_remove_one(gdth_ha_str *ha);
574
575/* Vortex only makes RAID controllers.
576 * We do not really want to specify all 550 ids here, so wildcard match.
577 */
578static const struct pci_device_id gdthtable[] = {
579 { PCI_VDEVICE(VORTEX, PCI_ANY_ID) },
580 { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SRC) },
581 { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SRC_XSCALE) },
582 { } /* terminate list */
583};
584MODULE_DEVICE_TABLE(pci, gdthtable);
585
586static struct pci_driver gdth_pci_driver = {
587 .name = "gdth",
588 .id_table = gdthtable,
589 .probe = gdth_pci_init_one,
590 .remove = gdth_pci_remove_one,
591};
592
593static void gdth_pci_remove_one(struct pci_dev *pdev)
594{
595 gdth_ha_str *ha = pci_get_drvdata(pdev);
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 u16 vendor = pdev->vendor;
607 u16 device = pdev->device;
608 unsigned long base0, base1, base2;
609 int rc;
610 gdth_pci_str gdth_pcistr;
611 gdth_ha_str *ha = NULL;
612
613 TRACE(("gdth_search_dev() cnt %d vendor %x device %x\n",
614 gdth_ctr_count, vendor, device));
615
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;
627
628 /* GDT PCI controller found, resources are already in pdev */
629 gdth_pcistr.pdev = pdev;
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))
636 return -ENODEV;
637 gdth_pcistr.dpmem = pci_resource_start(pdev, 0);
638 } else { /* GDT6110, GDT6120, .. */
639 if (!(base0 & IORESOURCE_MEM) ||
640 !(base2 & IORESOURCE_MEM) ||
641 !(base1 & IORESOURCE_IO))
642 return -ENODEV;
643 gdth_pcistr.dpmem = pci_resource_start(pdev, 2);
644 gdth_pcistr.io = pci_resource_start(pdev, 1);
645 }
646 TRACE2(("Controller found at %d/%d, irq %d, dpmem 0x%lx\n",
647 gdth_pcistr.pdev->bus->number,
648 PCI_SLOT(gdth_pcistr.pdev->devfn),
649 gdth_pcistr.irq,
650 gdth_pcistr.dpmem));
651
652 rc = gdth_pci_probe_one(&gdth_pcistr, &ha);
653 if (rc)
654 return rc;
655
656 return 0;
657}
658#endif /* CONFIG_PCI */
659
660#ifdef CONFIG_EISA
661static int __init gdth_init_eisa(u16 eisa_adr,gdth_ha_str *ha)
662{
663 u32 retries,id;
664 u8 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 = (u32)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}
752#endif /* CONFIG_EISA */
753
754#ifdef CONFIG_ISA
755static int __init gdth_init_isa(u32 bios_adr,gdth_ha_str *ha)
756{
757 register gdt2_dpram_str __iomem *dp2_ptr;
758 int i;
759 u8 irq_drq,prot_ver;
760 u32 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;
770 writeb(1, &dp2_ptr->io.memlock); /* switch off write protection */
771 /* reset interface area */
772 memset_io(&dp2_ptr->u, 0, sizeof(dp2_ptr->u));
773 if (readl(&dp2_ptr->u) != 0) {
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 */
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);
784
785 irq_drq = readb(&dp2_ptr->io.rq);
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
793 irq_drq = readb(&dp2_ptr->io.rq) >> 3;
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 */
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);
805 retries = INIT_RETRIES;
806 gdth_delay(20);
807 while (readb(&dp2_ptr->u.ic.S_Status) != 0xff) {
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 }
815 prot_ver = (u8)readl(&dp2_ptr->u.ic.S_Info[0]);
816 writeb(0, &dp2_ptr->u.ic.Status);
817 writeb(0xff, &dp2_ptr->io.irqdel);
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 */
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);
837 retries = INIT_RETRIES;
838 gdth_delay(20);
839 while (readb(&dp2_ptr->u.ic.S_Status) != 0xfe) {
840 if (--retries == 0) {
841 printk("GDT-ISA: Initialization error\n");
842 iounmap(ha->brd);
843 return 0;
844 }
845 gdth_delay(1);
846 }
847 writeb(0, &dp2_ptr->u.ic.Status);
848 writeb(0xff, &dp2_ptr->io.irqdel);
849
850 ha->dma64_support = 0;
851 return 1;
852}
853#endif /* CONFIG_ISA */
854
855#ifdef CONFIG_PCI
856static int gdth_init_pci(struct pci_dev *pdev, gdth_pci_str *pcistr,
857 gdth_ha_str *ha)
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 u32 retries;
863 u8 prot_ver;
864 u16 command;
865 int i, found = FALSE;
866
867 TRACE(("gdth_init_pci()\n"));
868
869 if (pdev->vendor == PCI_VENDOR_ID_INTEL)
870 ha->oem_id = OEM_ID_INTEL;
871 else
872 ha->oem_id = OEM_ID_ICP;
873 ha->brd_phys = (pdev->bus->number << 8) | (pdev->devfn & 0xf8);
874 ha->stype = (u32)pdev->device;
875 ha->irq = pdev->irq;
876 ha->pdev = pdev;
877
878 if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6000B) { /* GDT6000/B */
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;
887 writel(DPMEM_MAGIC, &dp6_ptr->u);
888 if (readl(&dp6_ptr->u) != DPMEM_MAGIC) {
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(u16));
895 if (ha->brd == NULL) {
896 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
897 return 0;
898 }
899 if (readw(ha->brd) != 0xffff) {
900 TRACE2(("init_pci_old() address 0x%x busy\n", i));
901 continue;
902 }
903 iounmap(ha->brd);
904 pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, i);
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;
911 writel(DPMEM_MAGIC, &dp6_ptr->u);
912 if (readl(&dp6_ptr->u) == DPMEM_MAGIC) {
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));
925 if (readl(&dp6_ptr->u) != 0) {
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 */
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);
940 retries = INIT_RETRIES;
941 gdth_delay(20);
942 while (readb(&dp6_ptr->u.ic.S_Status) != 0xff) {
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 }
950 prot_ver = (u8)readl(&dp6_ptr->u.ic.S_Info[0]);
951 writeb(0, &dp6_ptr->u.ic.S_Status);
952 writeb(0xff, &dp6_ptr->io.irqdel);
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 */
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);
969 retries = INIT_RETRIES;
970 gdth_delay(20);
971 while (readb(&dp6_ptr->u.ic.S_Status) != 0xfe) {
972 if (--retries == 0) {
973 printk("GDT-PCI: Initialization error\n");
974 iounmap(ha->brd);
975 return 0;
976 }
977 gdth_delay(1);
978 }
979 writeb(0, &dp6_ptr->u.ic.S_Status);
980 writeb(0xff, &dp6_ptr->io.irqdel);
981
982 ha->dma64_support = 0;
983
984 } else if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6555) { /* GDT6110, ... */
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;
996 writel(DPMEM_MAGIC, &dp6c_ptr->u);
997 if (readl(&dp6c_ptr->u) != DPMEM_MAGIC) {
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(u16));
1004 if (ha->brd == NULL) {
1005 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1006 return 0;
1007 }
1008 if (readw(ha->brd) != 0xffff) {
1009 TRACE2(("init_pci_plx() address 0x%x busy\n", i));
1010 continue;
1011 }
1012 iounmap(ha->brd);
1013 pci_write_config_dword(pdev, PCI_BASE_ADDRESS_2, i);
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;
1020 writel(DPMEM_MAGIC, &dp6c_ptr->u);
1021 if (readl(&dp6c_ptr->u) == DPMEM_MAGIC) {
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));
1034 if (readl(&dp6c_ptr->u) != 0) {
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
1044 writeb(0x00, &dp6c_ptr->u.ic.S_Status);
1045 writeb(0x00, &dp6c_ptr->u.ic.Cmd_Index);
1046
1047 writel(pcistr->dpmem, &dp6c_ptr->u.ic.S_Info[0]);
1048 writeb(0xff, &dp6c_ptr->u.ic.S_Cmd_Indx);
1049
1050 outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1051
1052 retries = INIT_RETRIES;
1053 gdth_delay(20);
1054 while (readb(&dp6c_ptr->u.ic.S_Status) != 0xff) {
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 }
1062 prot_ver = (u8)readl(&dp6c_ptr->u.ic.S_Info[0]);
1063 writeb(0, &dp6c_ptr->u.ic.Status);
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 */
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);
1079
1080 outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1081
1082 retries = INIT_RETRIES;
1083 gdth_delay(20);
1084 while (readb(&dp6c_ptr->u.ic.S_Status) != 0xfe) {
1085 if (--retries == 0) {
1086 printk("GDT-PCI: Initialization error\n");
1087 iounmap(ha->brd);
1088 return 0;
1089 }
1090 gdth_delay(1);
1091 }
1092 writeb(0, &dp6c_ptr->u.ic.S_Status);
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 */
1105 pci_read_config_word(pdev, PCI_COMMAND, &command);
1106 command |= 6;
1107 pci_write_config_word(pdev, PCI_COMMAND, command);
1108 gdth_delay(1);
1109
1110 dp6m_ptr = ha->brd;
1111
1112 /* Ensure that it is safe to access the non HW portions of DPMEM.
1113 * Aditional check needed for Xscale based RAID controllers */
1114 while( ((int)readb(&dp6m_ptr->i960r.sema0_reg) ) & 3 )
1115 gdth_delay(1);
1116
1117 /* check and reset interface area */
1118 writel(DPMEM_MAGIC, &dp6m_ptr->u);
1119 if (readl(&dp6m_ptr->u) != DPMEM_MAGIC) {
1120 printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1121 pcistr->dpmem);
1122 found = FALSE;
1123 for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1124 iounmap(ha->brd);
1125 ha->brd = ioremap(i, sizeof(u16));
1126 if (ha->brd == NULL) {
1127 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1128 return 0;
1129 }
1130 if (readw(ha->brd) != 0xffff) {
1131 TRACE2(("init_pci_mpr() address 0x%x busy\n", i));
1132 continue;
1133 }
1134 iounmap(ha->brd);
1135 pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, i);
1136 ha->brd = ioremap(i, sizeof(gdt6m_dpram_str));
1137 if (ha->brd == NULL) {
1138 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1139 return 0;
1140 }
1141 dp6m_ptr = ha->brd;
1142 writel(DPMEM_MAGIC, &dp6m_ptr->u);
1143 if (readl(&dp6m_ptr->u) == DPMEM_MAGIC) {
1144 printk("GDT-PCI: Use free address at 0x%x\n", i);
1145 found = TRUE;
1146 break;
1147 }
1148 }
1149 if (!found) {
1150 printk("GDT-PCI: No free address found!\n");
1151 iounmap(ha->brd);
1152 return 0;
1153 }
1154 }
1155 memset_io(&dp6m_ptr->u, 0, sizeof(dp6m_ptr->u));
1156
1157 /* disable board interrupts, deinit services */
1158 writeb(readb(&dp6m_ptr->i960r.edoor_en_reg) | 4,
1159 &dp6m_ptr->i960r.edoor_en_reg);
1160 writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1161 writeb(0x00, &dp6m_ptr->u.ic.S_Status);
1162 writeb(0x00, &dp6m_ptr->u.ic.Cmd_Index);
1163
1164 writel(pcistr->dpmem, &dp6m_ptr->u.ic.S_Info[0]);
1165 writeb(0xff, &dp6m_ptr->u.ic.S_Cmd_Indx);
1166 writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1167 retries = INIT_RETRIES;
1168 gdth_delay(20);
1169 while (readb(&dp6m_ptr->u.ic.S_Status) != 0xff) {
1170 if (--retries == 0) {
1171 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1172 iounmap(ha->brd);
1173 return 0;
1174 }
1175 gdth_delay(1);
1176 }
1177 prot_ver = (u8)readl(&dp6m_ptr->u.ic.S_Info[0]);
1178 writeb(0, &dp6m_ptr->u.ic.S_Status);
1179 if (prot_ver != PROTOCOL_VERSION) {
1180 printk("GDT-PCI: Illegal protocol version\n");
1181 iounmap(ha->brd);
1182 return 0;
1183 }
1184
1185 ha->type = GDT_PCIMPR;
1186 ha->ic_all_size = sizeof(dp6m_ptr->u);
1187
1188 /* special command to controller BIOS */
1189 writel(0x00, &dp6m_ptr->u.ic.S_Info[0]);
1190 writel(0x00, &dp6m_ptr->u.ic.S_Info[1]);
1191 writel(0x00, &dp6m_ptr->u.ic.S_Info[2]);
1192 writel(0x00, &dp6m_ptr->u.ic.S_Info[3]);
1193 writeb(0xfe, &dp6m_ptr->u.ic.S_Cmd_Indx);
1194 writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1195 retries = INIT_RETRIES;
1196 gdth_delay(20);
1197 while (readb(&dp6m_ptr->u.ic.S_Status) != 0xfe) {
1198 if (--retries == 0) {
1199 printk("GDT-PCI: Initialization error\n");
1200 iounmap(ha->brd);
1201 return 0;
1202 }
1203 gdth_delay(1);
1204 }
1205 writeb(0, &dp6m_ptr->u.ic.S_Status);
1206
1207 /* read FW version to detect 64-bit DMA support */
1208 writeb(0xfd, &dp6m_ptr->u.ic.S_Cmd_Indx);
1209 writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1210 retries = INIT_RETRIES;
1211 gdth_delay(20);
1212 while (readb(&dp6m_ptr->u.ic.S_Status) != 0xfd) {
1213 if (--retries == 0) {
1214 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1215 iounmap(ha->brd);
1216 return 0;
1217 }
1218 gdth_delay(1);
1219 }
1220 prot_ver = (u8)(readl(&dp6m_ptr->u.ic.S_Info[0]) >> 16);
1221 writeb(0, &dp6m_ptr->u.ic.S_Status);
1222 if (prot_ver < 0x2b) /* FW < x.43: no 64-bit DMA support */
1223 ha->dma64_support = 0;
1224 else
1225 ha->dma64_support = 1;
1226 }
1227
1228 return 1;
1229}
1230#endif /* CONFIG_PCI */
1231
1232/* controller protocol functions */
1233
1234static void gdth_enable_int(gdth_ha_str *ha)
1235{
1236 unsigned long flags;
1237 gdt2_dpram_str __iomem *dp2_ptr;
1238 gdt6_dpram_str __iomem *dp6_ptr;
1239 gdt6m_dpram_str __iomem *dp6m_ptr;
1240
1241 TRACE(("gdth_enable_int() hanum %d\n",ha->hanum));
1242 spin_lock_irqsave(&ha->smp_lock, flags);
1243
1244 if (ha->type == GDT_EISA) {
1245 outb(0xff, ha->bmic + EDOORREG);
1246 outb(0xff, ha->bmic + EDENABREG);
1247 outb(0x01, ha->bmic + EINTENABREG);
1248 } else if (ha->type == GDT_ISA) {
1249 dp2_ptr = ha->brd;
1250 writeb(1, &dp2_ptr->io.irqdel);
1251 writeb(0, &dp2_ptr->u.ic.Cmd_Index);
1252 writeb(1, &dp2_ptr->io.irqen);
1253 } else if (ha->type == GDT_PCI) {
1254 dp6_ptr = ha->brd;
1255 writeb(1, &dp6_ptr->io.irqdel);
1256 writeb(0, &dp6_ptr->u.ic.Cmd_Index);
1257 writeb(1, &dp6_ptr->io.irqen);
1258 } else if (ha->type == GDT_PCINEW) {
1259 outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
1260 outb(0x03, PTR2USHORT(&ha->plx->control1));
1261 } else if (ha->type == GDT_PCIMPR) {
1262 dp6m_ptr = ha->brd;
1263 writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1264 writeb(readb(&dp6m_ptr->i960r.edoor_en_reg) & ~4,
1265 &dp6m_ptr->i960r.edoor_en_reg);
1266 }
1267 spin_unlock_irqrestore(&ha->smp_lock, flags);
1268}
1269
1270/* return IStatus if interrupt was from this card else 0 */
1271static u8 gdth_get_status(gdth_ha_str *ha)
1272{
1273 u8 IStatus = 0;
1274
1275 TRACE(("gdth_get_status() irq %d ctr_count %d\n", ha->irq, gdth_ctr_count));
1276
1277 if (ha->type == GDT_EISA)
1278 IStatus = inb((u16)ha->bmic + EDOORREG);
1279 else if (ha->type == GDT_ISA)
1280 IStatus =
1281 readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1282 else if (ha->type == GDT_PCI)
1283 IStatus =
1284 readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1285 else if (ha->type == GDT_PCINEW)
1286 IStatus = inb(PTR2USHORT(&ha->plx->edoor_reg));
1287 else if (ha->type == GDT_PCIMPR)
1288 IStatus =
1289 readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.edoor_reg);
1290
1291 return IStatus;
1292}
1293
1294static int gdth_test_busy(gdth_ha_str *ha)
1295{
1296 register int gdtsema0 = 0;
1297
1298 TRACE(("gdth_test_busy() hanum %d\n", ha->hanum));
1299
1300 if (ha->type == GDT_EISA)
1301 gdtsema0 = (int)inb(ha->bmic + SEMA0REG);
1302 else if (ha->type == GDT_ISA)
1303 gdtsema0 = (int)readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1304 else if (ha->type == GDT_PCI)
1305 gdtsema0 = (int)readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1306 else if (ha->type == GDT_PCINEW)
1307 gdtsema0 = (int)inb(PTR2USHORT(&ha->plx->sema0_reg));
1308 else if (ha->type == GDT_PCIMPR)
1309 gdtsema0 =
1310 (int)readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1311
1312 return (gdtsema0 & 1);
1313}
1314
1315
1316static int gdth_get_cmd_index(gdth_ha_str *ha)
1317{
1318 int i;
1319
1320 TRACE(("gdth_get_cmd_index() hanum %d\n", ha->hanum));
1321
1322 for (i=0; i<GDTH_MAXCMDS; ++i) {
1323 if (ha->cmd_tab[i].cmnd == UNUSED_CMND) {
1324 ha->cmd_tab[i].cmnd = ha->pccb->RequestBuffer;
1325 ha->cmd_tab[i].service = ha->pccb->Service;
1326 ha->pccb->CommandIndex = (u32)i+2;
1327 return (i+2);
1328 }
1329 }
1330 return 0;
1331}
1332
1333
1334static void gdth_set_sema0(gdth_ha_str *ha)
1335{
1336 TRACE(("gdth_set_sema0() hanum %d\n", ha->hanum));
1337
1338 if (ha->type == GDT_EISA) {
1339 outb(1, ha->bmic + SEMA0REG);
1340 } else if (ha->type == GDT_ISA) {
1341 writeb(1, &((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1342 } else if (ha->type == GDT_PCI) {
1343 writeb(1, &((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1344 } else if (ha->type == GDT_PCINEW) {
1345 outb(1, PTR2USHORT(&ha->plx->sema0_reg));
1346 } else if (ha->type == GDT_PCIMPR) {
1347 writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1348 }
1349}
1350
1351
1352static void gdth_copy_command(gdth_ha_str *ha)
1353{
1354 register gdth_cmd_str *cmd_ptr;
1355 register gdt6m_dpram_str __iomem *dp6m_ptr;
1356 register gdt6c_dpram_str __iomem *dp6c_ptr;
1357 gdt6_dpram_str __iomem *dp6_ptr;
1358 gdt2_dpram_str __iomem *dp2_ptr;
1359 u16 cp_count,dp_offset,cmd_no;
1360
1361 TRACE(("gdth_copy_command() hanum %d\n", ha->hanum));
1362
1363 cp_count = ha->cmd_len;
1364 dp_offset= ha->cmd_offs_dpmem;
1365 cmd_no = ha->cmd_cnt;
1366 cmd_ptr = ha->pccb;
1367
1368 ++ha->cmd_cnt;
1369 if (ha->type == GDT_EISA)
1370 return; /* no DPMEM, no copy */
1371
1372 /* set cpcount dword aligned */
1373 if (cp_count & 3)
1374 cp_count += (4 - (cp_count & 3));
1375
1376 ha->cmd_offs_dpmem += cp_count;
1377
1378 /* set offset and service, copy command to DPMEM */
1379 if (ha->type == GDT_ISA) {
1380 dp2_ptr = ha->brd;
1381 writew(dp_offset + DPMEM_COMMAND_OFFSET,
1382 &dp2_ptr->u.ic.comm_queue[cmd_no].offset);
1383 writew((u16)cmd_ptr->Service,
1384 &dp2_ptr->u.ic.comm_queue[cmd_no].serv_id);
1385 memcpy_toio(&dp2_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1386 } else if (ha->type == GDT_PCI) {
1387 dp6_ptr = ha->brd;
1388 writew(dp_offset + DPMEM_COMMAND_OFFSET,
1389 &dp6_ptr->u.ic.comm_queue[cmd_no].offset);
1390 writew((u16)cmd_ptr->Service,
1391 &dp6_ptr->u.ic.comm_queue[cmd_no].serv_id);
1392 memcpy_toio(&dp6_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1393 } else if (ha->type == GDT_PCINEW) {
1394 dp6c_ptr = ha->brd;
1395 writew(dp_offset + DPMEM_COMMAND_OFFSET,
1396 &dp6c_ptr->u.ic.comm_queue[cmd_no].offset);
1397 writew((u16)cmd_ptr->Service,
1398 &dp6c_ptr->u.ic.comm_queue[cmd_no].serv_id);
1399 memcpy_toio(&dp6c_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1400 } else if (ha->type == GDT_PCIMPR) {
1401 dp6m_ptr = ha->brd;
1402 writew(dp_offset + DPMEM_COMMAND_OFFSET,
1403 &dp6m_ptr->u.ic.comm_queue[cmd_no].offset);
1404 writew((u16)cmd_ptr->Service,
1405 &dp6m_ptr->u.ic.comm_queue[cmd_no].serv_id);
1406 memcpy_toio(&dp6m_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1407 }
1408}
1409
1410
1411static void gdth_release_event(gdth_ha_str *ha)
1412{
1413 TRACE(("gdth_release_event() hanum %d\n", ha->hanum));
1414
1415#ifdef GDTH_STATISTICS
1416 {
1417 u32 i,j;
1418 for (i=0,j=0; j<GDTH_MAXCMDS; ++j) {
1419 if (ha->cmd_tab[j].cmnd != UNUSED_CMND)
1420 ++i;
1421 }
1422 if (max_index < i) {
1423 max_index = i;
1424 TRACE3(("GDT: max_index = %d\n",(u16)i));
1425 }
1426 }
1427#endif
1428
1429 if (ha->pccb->OpCode == GDT_INIT)
1430 ha->pccb->Service |= 0x80;
1431
1432 if (ha->type == GDT_EISA) {
1433 if (ha->pccb->OpCode == GDT_INIT) /* store DMA buffer */
1434 outl(ha->ccb_phys, ha->bmic + MAILBOXREG);
1435 outb(ha->pccb->Service, ha->bmic + LDOORREG);
1436 } else if (ha->type == GDT_ISA) {
1437 writeb(0, &((gdt2_dpram_str __iomem *)ha->brd)->io.event);
1438 } else if (ha->type == GDT_PCI) {
1439 writeb(0, &((gdt6_dpram_str __iomem *)ha->brd)->io.event);
1440 } else if (ha->type == GDT_PCINEW) {
1441 outb(1, PTR2USHORT(&ha->plx->ldoor_reg));
1442 } else if (ha->type == GDT_PCIMPR) {
1443 writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.ldoor_reg);
1444 }
1445}
1446
1447static int gdth_wait(gdth_ha_str *ha, int index, u32 time)
1448{
1449 int answer_found = FALSE;
1450 int wait_index = 0;
1451
1452 TRACE(("gdth_wait() hanum %d index %d time %d\n", ha->hanum, index, time));
1453
1454 if (index == 0)
1455 return 1; /* no wait required */
1456
1457 do {
1458 __gdth_interrupt(ha, true, &wait_index);
1459 if (wait_index == index) {
1460 answer_found = TRUE;
1461 break;
1462 }
1463 gdth_delay(1);
1464 } while (--time);
1465
1466 while (gdth_test_busy(ha))
1467 gdth_delay(0);
1468
1469 return (answer_found);
1470}
1471
1472
1473static int gdth_internal_cmd(gdth_ha_str *ha, u8 service, u16 opcode,
1474 u32 p1, u64 p2, u64 p3)
1475{
1476 register gdth_cmd_str *cmd_ptr;
1477 int retries,index;
1478
1479 TRACE2(("gdth_internal_cmd() service %d opcode %d\n",service,opcode));
1480
1481 cmd_ptr = ha->pccb;
1482 memset((char*)cmd_ptr,0,sizeof(gdth_cmd_str));
1483
1484 /* make command */
1485 for (retries = INIT_RETRIES;;) {
1486 cmd_ptr->Service = service;
1487 cmd_ptr->RequestBuffer = INTERNAL_CMND;
1488 if (!(index=gdth_get_cmd_index(ha))) {
1489 TRACE(("GDT: No free command index found\n"));
1490 return 0;
1491 }
1492 gdth_set_sema0(ha);
1493 cmd_ptr->OpCode = opcode;
1494 cmd_ptr->BoardNode = LOCALBOARD;
1495 if (service == CACHESERVICE) {
1496 if (opcode == GDT_IOCTL) {
1497 cmd_ptr->u.ioctl.subfunc = p1;
1498 cmd_ptr->u.ioctl.channel = (u32)p2;
1499 cmd_ptr->u.ioctl.param_size = (u16)p3;
1500 cmd_ptr->u.ioctl.p_param = ha->scratch_phys;
1501 } else {
1502 if (ha->cache_feat & GDT_64BIT) {
1503 cmd_ptr->u.cache64.DeviceNo = (u16)p1;
1504 cmd_ptr->u.cache64.BlockNo = p2;
1505 } else {
1506 cmd_ptr->u.cache.DeviceNo = (u16)p1;
1507 cmd_ptr->u.cache.BlockNo = (u32)p2;
1508 }
1509 }
1510 } else if (service == SCSIRAWSERVICE) {
1511 if (ha->raw_feat & GDT_64BIT) {
1512 cmd_ptr->u.raw64.direction = p1;
1513 cmd_ptr->u.raw64.bus = (u8)p2;
1514 cmd_ptr->u.raw64.target = (u8)p3;
1515 cmd_ptr->u.raw64.lun = (u8)(p3 >> 8);
1516 } else {
1517 cmd_ptr->u.raw.direction = p1;
1518 cmd_ptr->u.raw.bus = (u8)p2;
1519 cmd_ptr->u.raw.target = (u8)p3;
1520 cmd_ptr->u.raw.lun = (u8)(p3 >> 8);
1521 }
1522 } else if (service == SCREENSERVICE) {
1523 if (opcode == GDT_REALTIME) {
1524 *(u32 *)&cmd_ptr->u.screen.su.data[0] = p1;
1525 *(u32 *)&cmd_ptr->u.screen.su.data[4] = (u32)p2;
1526 *(u32 *)&cmd_ptr->u.screen.su.data[8] = (u32)p3;
1527 }
1528 }
1529 ha->cmd_len = sizeof(gdth_cmd_str);
1530 ha->cmd_offs_dpmem = 0;
1531 ha->cmd_cnt = 0;
1532 gdth_copy_command(ha);
1533 gdth_release_event(ha);
1534 gdth_delay(20);
1535 if (!gdth_wait(ha, index, INIT_TIMEOUT)) {
1536 printk("GDT: Initialization error (timeout service %d)\n",service);
1537 return 0;
1538 }
1539 if (ha->status != S_BSY || --retries == 0)
1540 break;
1541 gdth_delay(1);
1542 }
1543
1544 return (ha->status != S_OK ? 0:1);
1545}
1546
1547
1548/* search for devices */
1549
1550static int gdth_search_drives(gdth_ha_str *ha)
1551{
1552 u16 cdev_cnt, i;
1553 int ok;
1554 u32 bus_no, drv_cnt, drv_no, j;
1555 gdth_getch_str *chn;
1556 gdth_drlist_str *drl;
1557 gdth_iochan_str *ioc;
1558 gdth_raw_iochan_str *iocr;
1559 gdth_arcdl_str *alst;
1560 gdth_alist_str *alst2;
1561 gdth_oem_str_ioctl *oemstr;
1562#ifdef INT_COAL
1563 gdth_perf_modes *pmod;
1564#endif
1565
1566#ifdef GDTH_RTC
1567 u8 rtc[12];
1568 unsigned long flags;
1569#endif
1570
1571 TRACE(("gdth_search_drives() hanum %d\n", ha->hanum));
1572 ok = 0;
1573
1574 /* initialize controller services, at first: screen service */
1575 ha->screen_feat = 0;
1576 if (!force_dma32) {
1577 ok = gdth_internal_cmd(ha, SCREENSERVICE, GDT_X_INIT_SCR, 0, 0, 0);
1578 if (ok)
1579 ha->screen_feat = GDT_64BIT;
1580 }
1581 if (force_dma32 || (!ok && ha->status == (u16)S_NOFUNC))
1582 ok = gdth_internal_cmd(ha, SCREENSERVICE, GDT_INIT, 0, 0, 0);
1583 if (!ok) {
1584 printk("GDT-HA %d: Initialization error screen service (code %d)\n",
1585 ha->hanum, ha->status);
1586 return 0;
1587 }
1588 TRACE2(("gdth_search_drives(): SCREENSERVICE initialized\n"));
1589
1590#ifdef GDTH_RTC
1591 /* read realtime clock info, send to controller */
1592 /* 1. wait for the falling edge of update flag */
1593 spin_lock_irqsave(&rtc_lock, flags);
1594 for (j = 0; j < 1000000; ++j)
1595 if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)
1596 break;
1597 for (j = 0; j < 1000000; ++j)
1598 if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
1599 break;
1600 /* 2. read info */
1601 do {
1602 for (j = 0; j < 12; ++j)
1603 rtc[j] = CMOS_READ(j);
1604 } while (rtc[0] != CMOS_READ(0));
1605 spin_unlock_irqrestore(&rtc_lock, flags);
1606 TRACE2(("gdth_search_drives(): RTC: %x/%x/%x\n",*(u32 *)&rtc[0],
1607 *(u32 *)&rtc[4], *(u32 *)&rtc[8]));
1608 /* 3. send to controller firmware */
1609 gdth_internal_cmd(ha, SCREENSERVICE, GDT_REALTIME, *(u32 *)&rtc[0],
1610 *(u32 *)&rtc[4], *(u32 *)&rtc[8]);
1611#endif
1612
1613 /* unfreeze all IOs */
1614 gdth_internal_cmd(ha, CACHESERVICE, GDT_UNFREEZE_IO, 0, 0, 0);
1615
1616 /* initialize cache service */
1617 ha->cache_feat = 0;
1618 if (!force_dma32) {
1619 ok = gdth_internal_cmd(ha, CACHESERVICE, GDT_X_INIT_HOST, LINUX_OS,
1620 0, 0);
1621 if (ok)
1622 ha->cache_feat = GDT_64BIT;
1623 }
1624 if (force_dma32 || (!ok && ha->status == (u16)S_NOFUNC))
1625 ok = gdth_internal_cmd(ha, CACHESERVICE, GDT_INIT, LINUX_OS, 0, 0);
1626 if (!ok) {
1627 printk("GDT-HA %d: Initialization error cache service (code %d)\n",
1628 ha->hanum, ha->status);
1629 return 0;
1630 }
1631 TRACE2(("gdth_search_drives(): CACHESERVICE initialized\n"));
1632 cdev_cnt = (u16)ha->info;
1633 ha->fw_vers = ha->service;
1634
1635#ifdef INT_COAL
1636 if (ha->type == GDT_PCIMPR) {
1637 /* set perf. modes */
1638 pmod = (gdth_perf_modes *)ha->pscratch;
1639 pmod->version = 1;
1640 pmod->st_mode = 1; /* enable one status buffer */
1641 *((u64 *)&pmod->st_buff_addr1) = ha->coal_stat_phys;
1642 pmod->st_buff_indx1 = COALINDEX;
1643 pmod->st_buff_addr2 = 0;
1644 pmod->st_buff_u_addr2 = 0;
1645 pmod->st_buff_indx2 = 0;
1646 pmod->st_buff_size = sizeof(gdth_coal_status) * MAXOFFSETS;
1647 pmod->cmd_mode = 0; // disable all cmd buffers
1648 pmod->cmd_buff_addr1 = 0;
1649 pmod->cmd_buff_u_addr1 = 0;
1650 pmod->cmd_buff_indx1 = 0;
1651 pmod->cmd_buff_addr2 = 0;
1652 pmod->cmd_buff_u_addr2 = 0;
1653 pmod->cmd_buff_indx2 = 0;
1654 pmod->cmd_buff_size = 0;
1655 pmod->reserved1 = 0;
1656 pmod->reserved2 = 0;
1657 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, SET_PERF_MODES,
1658 INVALID_CHANNEL,sizeof(gdth_perf_modes))) {
1659 printk("GDT-HA %d: Interrupt coalescing activated\n", ha->hanum);
1660 }
1661 }
1662#endif
1663
1664 /* detect number of buses - try new IOCTL */
1665 iocr = (gdth_raw_iochan_str *)ha->pscratch;
1666 iocr->hdr.version = 0xffffffff;
1667 iocr->hdr.list_entries = MAXBUS;
1668 iocr->hdr.first_chan = 0;
1669 iocr->hdr.last_chan = MAXBUS-1;
1670 iocr->hdr.list_offset = GDTOFFSOF(gdth_raw_iochan_str, list[0]);
1671 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, IOCHAN_RAW_DESC,
1672 INVALID_CHANNEL,sizeof(gdth_raw_iochan_str))) {
1673 TRACE2(("IOCHAN_RAW_DESC supported!\n"));
1674 ha->bus_cnt = iocr->hdr.chan_count;
1675 for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1676 if (iocr->list[bus_no].proc_id < MAXID)
1677 ha->bus_id[bus_no] = iocr->list[bus_no].proc_id;
1678 else
1679 ha->bus_id[bus_no] = 0xff;
1680 }
1681 } else {
1682 /* old method */
1683 chn = (gdth_getch_str *)ha->pscratch;
1684 for (bus_no = 0; bus_no < MAXBUS; ++bus_no) {
1685 chn->channel_no = bus_no;
1686 if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1687 SCSI_CHAN_CNT | L_CTRL_PATTERN,
1688 IO_CHANNEL | INVALID_CHANNEL,
1689 sizeof(gdth_getch_str))) {
1690 if (bus_no == 0) {
1691 printk("GDT-HA %d: Error detecting channel count (0x%x)\n",
1692 ha->hanum, ha->status);
1693 return 0;
1694 }
1695 break;
1696 }
1697 if (chn->siop_id < MAXID)
1698 ha->bus_id[bus_no] = chn->siop_id;
1699 else
1700 ha->bus_id[bus_no] = 0xff;
1701 }
1702 ha->bus_cnt = (u8)bus_no;
1703 }
1704 TRACE2(("gdth_search_drives() %d channels\n",ha->bus_cnt));
1705
1706 /* read cache configuration */
1707 if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_INFO,
1708 INVALID_CHANNEL,sizeof(gdth_cinfo_str))) {
1709 printk("GDT-HA %d: Initialization error cache service (code %d)\n",
1710 ha->hanum, ha->status);
1711 return 0;
1712 }
1713 ha->cpar = ((gdth_cinfo_str *)ha->pscratch)->cpar;
1714 TRACE2(("gdth_search_drives() cinfo: vs %x sta %d str %d dw %d b %d\n",
1715 ha->cpar.version,ha->cpar.state,ha->cpar.strategy,
1716 ha->cpar.write_back,ha->cpar.block_size));
1717
1718 /* read board info and features */
1719 ha->more_proc = FALSE;
1720 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, BOARD_INFO,
1721 INVALID_CHANNEL,sizeof(gdth_binfo_str))) {
1722 memcpy(&ha->binfo, (gdth_binfo_str *)ha->pscratch,
1723 sizeof(gdth_binfo_str));
1724 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, BOARD_FEATURES,
1725 INVALID_CHANNEL,sizeof(gdth_bfeat_str))) {
1726 TRACE2(("BOARD_INFO/BOARD_FEATURES supported\n"));
1727 ha->bfeat = *(gdth_bfeat_str *)ha->pscratch;
1728 ha->more_proc = TRUE;
1729 }
1730 } else {
1731 TRACE2(("BOARD_INFO requires firmware >= 1.10/2.08\n"));
1732 strcpy(ha->binfo.type_string, gdth_ctr_name(ha));
1733 }
1734 TRACE2(("Controller name: %s\n",ha->binfo.type_string));
1735
1736 /* read more informations */
1737 if (ha->more_proc) {
1738 /* physical drives, channel addresses */
1739 ioc = (gdth_iochan_str *)ha->pscratch;
1740 ioc->hdr.version = 0xffffffff;
1741 ioc->hdr.list_entries = MAXBUS;
1742 ioc->hdr.first_chan = 0;
1743 ioc->hdr.last_chan = MAXBUS-1;
1744 ioc->hdr.list_offset = GDTOFFSOF(gdth_iochan_str, list[0]);
1745 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, IOCHAN_DESC,
1746 INVALID_CHANNEL,sizeof(gdth_iochan_str))) {
1747 for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1748 ha->raw[bus_no].address = ioc->list[bus_no].address;
1749 ha->raw[bus_no].local_no = ioc->list[bus_no].local_no;
1750 }
1751 } else {
1752 for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1753 ha->raw[bus_no].address = IO_CHANNEL;
1754 ha->raw[bus_no].local_no = bus_no;
1755 }
1756 }
1757 for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1758 chn = (gdth_getch_str *)ha->pscratch;
1759 chn->channel_no = ha->raw[bus_no].local_no;
1760 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1761 SCSI_CHAN_CNT | L_CTRL_PATTERN,
1762 ha->raw[bus_no].address | INVALID_CHANNEL,
1763 sizeof(gdth_getch_str))) {
1764 ha->raw[bus_no].pdev_cnt = chn->drive_cnt;
1765 TRACE2(("Channel %d: %d phys. drives\n",
1766 bus_no,chn->drive_cnt));
1767 }
1768 if (ha->raw[bus_no].pdev_cnt > 0) {
1769 drl = (gdth_drlist_str *)ha->pscratch;
1770 drl->sc_no = ha->raw[bus_no].local_no;
1771 drl->sc_cnt = ha->raw[bus_no].pdev_cnt;
1772 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1773 SCSI_DR_LIST | L_CTRL_PATTERN,
1774 ha->raw[bus_no].address | INVALID_CHANNEL,
1775 sizeof(gdth_drlist_str))) {
1776 for (j = 0; j < ha->raw[bus_no].pdev_cnt; ++j)
1777 ha->raw[bus_no].id_list[j] = drl->sc_list[j];
1778 } else {
1779 ha->raw[bus_no].pdev_cnt = 0;
1780 }
1781 }
1782 }
1783
1784 /* logical drives */
1785 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_DRV_CNT,
1786 INVALID_CHANNEL,sizeof(u32))) {
1787 drv_cnt = *(u32 *)ha->pscratch;
1788 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_DRV_LIST,
1789 INVALID_CHANNEL,drv_cnt * sizeof(u32))) {
1790 for (j = 0; j < drv_cnt; ++j) {
1791 drv_no = ((u32 *)ha->pscratch)[j];
1792 if (drv_no < MAX_LDRIVES) {
1793 ha->hdr[drv_no].is_logdrv = TRUE;
1794 TRACE2(("Drive %d is log. drive\n",drv_no));
1795 }
1796 }
1797 }
1798 alst = (gdth_arcdl_str *)ha->pscratch;
1799 alst->entries_avail = MAX_LDRIVES;
1800 alst->first_entry = 0;
1801 alst->list_offset = GDTOFFSOF(gdth_arcdl_str, list[0]);
1802 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1803 ARRAY_DRV_LIST2 | LA_CTRL_PATTERN,
1804 INVALID_CHANNEL, sizeof(gdth_arcdl_str) +
1805 (alst->entries_avail-1) * sizeof(gdth_alist_str))) {
1806 for (j = 0; j < alst->entries_init; ++j) {
1807 ha->hdr[j].is_arraydrv = alst->list[j].is_arrayd;
1808 ha->hdr[j].is_master = alst->list[j].is_master;
1809 ha->hdr[j].is_parity = alst->list[j].is_parity;
1810 ha->hdr[j].is_hotfix = alst->list[j].is_hotfix;
1811 ha->hdr[j].master_no = alst->list[j].cd_handle;
1812 }
1813 } else if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1814 ARRAY_DRV_LIST | LA_CTRL_PATTERN,
1815 0, 35 * sizeof(gdth_alist_str))) {
1816 for (j = 0; j < 35; ++j) {
1817 alst2 = &((gdth_alist_str *)ha->pscratch)[j];
1818 ha->hdr[j].is_arraydrv = alst2->is_arrayd;
1819 ha->hdr[j].is_master = alst2->is_master;
1820 ha->hdr[j].is_parity = alst2->is_parity;
1821 ha->hdr[j].is_hotfix = alst2->is_hotfix;
1822 ha->hdr[j].master_no = alst2->cd_handle;
1823 }
1824 }
1825 }
1826 }
1827
1828 /* initialize raw service */
1829 ha->raw_feat = 0;
1830 if (!force_dma32) {
1831 ok = gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_X_INIT_RAW, 0, 0, 0);
1832 if (ok)
1833 ha->raw_feat = GDT_64BIT;
1834 }
1835 if (force_dma32 || (!ok && ha->status == (u16)S_NOFUNC))
1836 ok = gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_INIT, 0, 0, 0);
1837 if (!ok) {
1838 printk("GDT-HA %d: Initialization error raw service (code %d)\n",
1839 ha->hanum, ha->status);
1840 return 0;
1841 }
1842 TRACE2(("gdth_search_drives(): RAWSERVICE initialized\n"));
1843
1844 /* set/get features raw service (scatter/gather) */
1845 if (gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_SET_FEAT, SCATTER_GATHER,
1846 0, 0)) {
1847 TRACE2(("gdth_search_drives(): set features RAWSERVICE OK\n"));
1848 if (gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_GET_FEAT, 0, 0, 0)) {
1849 TRACE2(("gdth_search_dr(): get feat RAWSERVICE %d\n",
1850 ha->info));
1851 ha->raw_feat |= (u16)ha->info;
1852 }
1853 }
1854
1855 /* set/get features cache service (equal to raw service) */
1856 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_SET_FEAT, 0,
1857 SCATTER_GATHER,0)) {
1858 TRACE2(("gdth_search_drives(): set features CACHESERVICE OK\n"));
1859 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_GET_FEAT, 0, 0, 0)) {
1860 TRACE2(("gdth_search_dr(): get feat CACHESERV. %d\n",
1861 ha->info));
1862 ha->cache_feat |= (u16)ha->info;
1863 }
1864 }
1865
1866 /* reserve drives for raw service */
1867 if (reserve_mode != 0) {
1868 gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESERVE_ALL,
1869 reserve_mode == 1 ? 1 : 3, 0, 0);
1870 TRACE2(("gdth_search_drives(): RESERVE_ALL code %d\n",
1871 ha->status));
1872 }
1873 for (i = 0; i < MAX_RES_ARGS; i += 4) {
1874 if (reserve_list[i] == ha->hanum && reserve_list[i+1] < ha->bus_cnt &&
1875 reserve_list[i+2] < ha->tid_cnt && reserve_list[i+3] < MAXLUN) {
1876 TRACE2(("gdth_search_drives(): reserve ha %d bus %d id %d lun %d\n",
1877 reserve_list[i], reserve_list[i+1],
1878 reserve_list[i+2], reserve_list[i+3]));
1879 if (!gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESERVE, 0,
1880 reserve_list[i+1], reserve_list[i+2] |
1881 (reserve_list[i+3] << 8))) {
1882 printk("GDT-HA %d: Error raw service (RESERVE, code %d)\n",
1883 ha->hanum, ha->status);
1884 }
1885 }
1886 }
1887
1888 /* Determine OEM string using IOCTL */
1889 oemstr = (gdth_oem_str_ioctl *)ha->pscratch;
1890 oemstr->params.ctl_version = 0x01;
1891 oemstr->params.buffer_size = sizeof(oemstr->text);
1892 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1893 CACHE_READ_OEM_STRING_RECORD,INVALID_CHANNEL,
1894 sizeof(gdth_oem_str_ioctl))) {
1895 TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD OK\n"));
1896 printk("GDT-HA %d: Vendor: %s Name: %s\n",
1897 ha->hanum, oemstr->text.oem_company_name, ha->binfo.type_string);
1898 /* Save the Host Drive inquiry data */
1899 strlcpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,
1900 sizeof(ha->oem_name));
1901 } else {
1902 /* Old method, based on PCI ID */
1903 TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD failed\n"));
1904 printk("GDT-HA %d: Name: %s\n",
1905 ha->hanum, ha->binfo.type_string);
1906 if (ha->oem_id == OEM_ID_INTEL)
1907 strlcpy(ha->oem_name,"Intel ", sizeof(ha->oem_name));
1908 else
1909 strlcpy(ha->oem_name,"ICP ", sizeof(ha->oem_name));
1910 }
1911
1912 /* scanning for host drives */
1913 for (i = 0; i < cdev_cnt; ++i)
1914 gdth_analyse_hdrive(ha, i);
1915
1916 TRACE(("gdth_search_drives() OK\n"));
1917 return 1;
1918}
1919
1920static int gdth_analyse_hdrive(gdth_ha_str *ha, u16 hdrive)
1921{
1922 u32 drv_cyls;
1923 int drv_hds, drv_secs;
1924
1925 TRACE(("gdth_analyse_hdrive() hanum %d drive %d\n", ha->hanum, hdrive));
1926 if (hdrive >= MAX_HDRIVES)
1927 return 0;
1928
1929 if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_INFO, hdrive, 0, 0))
1930 return 0;
1931 ha->hdr[hdrive].present = TRUE;
1932 ha->hdr[hdrive].size = ha->info;
1933
1934 /* evaluate mapping (sectors per head, heads per cylinder) */
1935 ha->hdr[hdrive].size &= ~SECS32;
1936 if (ha->info2 == 0) {
1937 gdth_eval_mapping(ha->hdr[hdrive].size,&drv_cyls,&drv_hds,&drv_secs);
1938 } else {
1939 drv_hds = ha->info2 & 0xff;
1940 drv_secs = (ha->info2 >> 8) & 0xff;
1941 drv_cyls = (u32)ha->hdr[hdrive].size / drv_hds / drv_secs;
1942 }
1943 ha->hdr[hdrive].heads = (u8)drv_hds;
1944 ha->hdr[hdrive].secs = (u8)drv_secs;
1945 /* round size */
1946 ha->hdr[hdrive].size = drv_cyls * drv_hds * drv_secs;
1947
1948 if (ha->cache_feat & GDT_64BIT) {
1949 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_X_INFO, hdrive, 0, 0)
1950 && ha->info2 != 0) {
1951 ha->hdr[hdrive].size = ((u64)ha->info2 << 32) | ha->info;
1952 }
1953 }
1954 TRACE2(("gdth_search_dr() cdr. %d size %d hds %d scs %d\n",
1955 hdrive,ha->hdr[hdrive].size,drv_hds,drv_secs));
1956
1957 /* get informations about device */
1958 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_DEVTYPE, hdrive, 0, 0)) {
1959 TRACE2(("gdth_search_dr() cache drive %d devtype %d\n",
1960 hdrive,ha->info));
1961 ha->hdr[hdrive].devtype = (u16)ha->info;
1962 }
1963
1964 /* cluster info */
1965 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_CLUST_INFO, hdrive, 0, 0)) {
1966 TRACE2(("gdth_search_dr() cache drive %d cluster info %d\n",
1967 hdrive,ha->info));
1968 if (!shared_access)
1969 ha->hdr[hdrive].cluster_type = (u8)ha->info;
1970 }
1971
1972 /* R/W attributes */
1973 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_RW_ATTRIBS, hdrive, 0, 0)) {
1974 TRACE2(("gdth_search_dr() cache drive %d r/w attrib. %d\n",
1975 hdrive,ha->info));
1976 ha->hdr[hdrive].rw_attribs = (u8)ha->info;
1977 }
1978
1979 return 1;
1980}
1981
1982
1983/* command queueing/sending functions */
1984
1985static void gdth_putq(gdth_ha_str *ha, Scsi_Cmnd *scp, u8 priority)
1986{
1987 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
1988 register Scsi_Cmnd *pscp;
1989 register Scsi_Cmnd *nscp;
1990 unsigned long flags;
1991
1992 TRACE(("gdth_putq() priority %d\n",priority));
1993 spin_lock_irqsave(&ha->smp_lock, flags);
1994
1995 if (!cmndinfo->internal_command)
1996 cmndinfo->priority = priority;
1997
1998 if (ha->req_first==NULL) {
1999 ha->req_first = scp; /* queue was empty */
2000 scp->SCp.ptr = NULL;
2001 } else { /* queue not empty */
2002 pscp = ha->req_first;
2003 nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2004 /* priority: 0-highest,..,0xff-lowest */
2005 while (nscp && gdth_cmnd_priv(nscp)->priority <= priority) {
2006 pscp = nscp;
2007 nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2008 }
2009 pscp->SCp.ptr = (char *)scp;
2010 scp->SCp.ptr = (char *)nscp;
2011 }
2012 spin_unlock_irqrestore(&ha->smp_lock, flags);
2013
2014#ifdef GDTH_STATISTICS
2015 flags = 0;
2016 for (nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
2017 ++flags;
2018 if (max_rq < flags) {
2019 max_rq = flags;
2020 TRACE3(("GDT: max_rq = %d\n",(u16)max_rq));
2021 }
2022#endif
2023}
2024
2025static void gdth_next(gdth_ha_str *ha)
2026{
2027 register Scsi_Cmnd *pscp;
2028 register Scsi_Cmnd *nscp;
2029 u8 b, t, l, firsttime;
2030 u8 this_cmd, next_cmd;
2031 unsigned long flags = 0;
2032 int cmd_index;
2033
2034 TRACE(("gdth_next() hanum %d\n", ha->hanum));
2035 if (!gdth_polling)
2036 spin_lock_irqsave(&ha->smp_lock, flags);
2037
2038 ha->cmd_cnt = ha->cmd_offs_dpmem = 0;
2039 this_cmd = firsttime = TRUE;
2040 next_cmd = gdth_polling ? FALSE:TRUE;
2041 cmd_index = 0;
2042
2043 for (nscp = pscp = ha->req_first; nscp; nscp = (Scsi_Cmnd *)nscp->SCp.ptr) {
2044 struct gdth_cmndinfo *nscp_cmndinfo = gdth_cmnd_priv(nscp);
2045 if (nscp != pscp && nscp != (Scsi_Cmnd *)pscp->SCp.ptr)
2046 pscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2047 if (!nscp_cmndinfo->internal_command) {
2048 b = nscp->device->channel;
2049 t = nscp->device->id;
2050 l = nscp->device->lun;
2051 if (nscp_cmndinfo->priority >= DEFAULT_PRI) {
2052 if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2053 (b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock))
2054 continue;
2055 }
2056 } else
2057 b = t = l = 0;
2058
2059 if (firsttime) {
2060 if (gdth_test_busy(ha)) { /* controller busy ? */
2061 TRACE(("gdth_next() controller %d busy !\n", ha->hanum));
2062 if (!gdth_polling) {
2063 spin_unlock_irqrestore(&ha->smp_lock, flags);
2064 return;
2065 }
2066 while (gdth_test_busy(ha))
2067 gdth_delay(1);
2068 }
2069 firsttime = FALSE;
2070 }
2071
2072 if (!nscp_cmndinfo->internal_command) {
2073 if (nscp_cmndinfo->phase == -1) {
2074 nscp_cmndinfo->phase = CACHESERVICE; /* default: cache svc. */
2075 if (nscp->cmnd[0] == TEST_UNIT_READY) {
2076 TRACE2(("TEST_UNIT_READY Bus %d Id %d LUN %d\n",
2077 b, t, l));
2078 /* TEST_UNIT_READY -> set scan mode */
2079 if ((ha->scan_mode & 0x0f) == 0) {
2080 if (b == 0 && t == 0 && l == 0) {
2081 ha->scan_mode |= 1;
2082 TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2083 }
2084 } else if ((ha->scan_mode & 0x0f) == 1) {
2085 if (b == 0 && ((t == 0 && l == 1) ||
2086 (t == 1 && l == 0))) {
2087 nscp_cmndinfo->OpCode = GDT_SCAN_START;
2088 nscp_cmndinfo->phase = ((ha->scan_mode & 0x10 ? 1:0) << 8)
2089 | SCSIRAWSERVICE;
2090 ha->scan_mode = 0x12;
2091 TRACE2(("Scan mode: 0x%x (SCAN_START)\n",
2092 ha->scan_mode));
2093 } else {
2094 ha->scan_mode &= 0x10;
2095 TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2096 }
2097 } else if (ha->scan_mode == 0x12) {
2098 if (b == ha->bus_cnt && t == ha->tid_cnt-1) {
2099 nscp_cmndinfo->phase = SCSIRAWSERVICE;
2100 nscp_cmndinfo->OpCode = GDT_SCAN_END;
2101 ha->scan_mode &= 0x10;
2102 TRACE2(("Scan mode: 0x%x (SCAN_END)\n",
2103 ha->scan_mode));
2104 }
2105 }
2106 }
2107 if (b == ha->virt_bus && nscp->cmnd[0] != INQUIRY &&
2108 nscp->cmnd[0] != READ_CAPACITY && nscp->cmnd[0] != MODE_SENSE &&
2109 (ha->hdr[t].cluster_type & CLUSTER_DRIVE)) {
2110 /* always GDT_CLUST_INFO! */
2111 nscp_cmndinfo->OpCode = GDT_CLUST_INFO;
2112 }
2113 }
2114 }
2115
2116 if (nscp_cmndinfo->OpCode != -1) {
2117 if ((nscp_cmndinfo->phase & 0xff) == CACHESERVICE) {
2118 if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
2119 this_cmd = FALSE;
2120 next_cmd = FALSE;
2121 } else if ((nscp_cmndinfo->phase & 0xff) == SCSIRAWSERVICE) {
2122 if (!(cmd_index=gdth_fill_raw_cmd(ha, nscp, BUS_L2P(ha, b))))
2123 this_cmd = FALSE;
2124 next_cmd = FALSE;
2125 } else {
2126 memset((char*)nscp->sense_buffer,0,16);
2127 nscp->sense_buffer[0] = 0x70;
2128 nscp->sense_buffer[2] = NOT_READY;
2129 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2130 if (!nscp_cmndinfo->wait_for_completion)
2131 nscp_cmndinfo->wait_for_completion++;
2132 else
2133 gdth_scsi_done(nscp);
2134 }
2135 } else if (gdth_cmnd_priv(nscp)->internal_command) {
2136 if (!(cmd_index=gdth_special_cmd(ha, nscp)))
2137 this_cmd = FALSE;
2138 next_cmd = FALSE;
2139 } else if (b != ha->virt_bus) {
2140 if (ha->raw[BUS_L2P(ha,b)].io_cnt[t] >= GDTH_MAX_RAW ||
2141 !(cmd_index=gdth_fill_raw_cmd(ha, nscp, BUS_L2P(ha, b))))
2142 this_cmd = FALSE;
2143 else
2144 ha->raw[BUS_L2P(ha,b)].io_cnt[t]++;
2145 } else if (t >= MAX_HDRIVES || !ha->hdr[t].present || l != 0) {
2146 TRACE2(("Command 0x%x to bus %d id %d lun %d -> IGNORE\n",
2147 nscp->cmnd[0], b, t, l));
2148 nscp->result = DID_BAD_TARGET << 16;
2149 if (!nscp_cmndinfo->wait_for_completion)
2150 nscp_cmndinfo->wait_for_completion++;
2151 else
2152 gdth_scsi_done(nscp);
2153 } else {
2154 switch (nscp->cmnd[0]) {
2155 case TEST_UNIT_READY:
2156 case INQUIRY:
2157 case REQUEST_SENSE:
2158 case READ_CAPACITY:
2159 case VERIFY:
2160 case START_STOP:
2161 case MODE_SENSE:
2162 case SERVICE_ACTION_IN_16:
2163 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2164 nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2165 nscp->cmnd[4],nscp->cmnd[5]));
2166 if (ha->hdr[t].media_changed && nscp->cmnd[0] != INQUIRY) {
2167 /* return UNIT_ATTENTION */
2168 TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2169 nscp->cmnd[0], t));
2170 ha->hdr[t].media_changed = FALSE;
2171 memset((char*)nscp->sense_buffer,0,16);
2172 nscp->sense_buffer[0] = 0x70;
2173 nscp->sense_buffer[2] = UNIT_ATTENTION;
2174 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2175 if (!nscp_cmndinfo->wait_for_completion)
2176 nscp_cmndinfo->wait_for_completion++;
2177 else
2178 gdth_scsi_done(nscp);
2179 } else if (gdth_internal_cache_cmd(ha, nscp))
2180 gdth_scsi_done(nscp);
2181 break;
2182
2183 case ALLOW_MEDIUM_REMOVAL:
2184 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2185 nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2186 nscp->cmnd[4],nscp->cmnd[5]));
2187 if ( (nscp->cmnd[4]&1) && !(ha->hdr[t].devtype&1) ) {
2188 TRACE(("Prevent r. nonremov. drive->do nothing\n"));
2189 nscp->result = DID_OK << 16;
2190 nscp->sense_buffer[0] = 0;
2191 if (!nscp_cmndinfo->wait_for_completion)
2192 nscp_cmndinfo->wait_for_completion++;
2193 else
2194 gdth_scsi_done(nscp);
2195 } else {
2196 nscp->cmnd[3] = (ha->hdr[t].devtype&1) ? 1:0;
2197 TRACE(("Prevent/allow r. %d rem. drive %d\n",
2198 nscp->cmnd[4],nscp->cmnd[3]));
2199 if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
2200 this_cmd = FALSE;
2201 }
2202 break;
2203
2204 case RESERVE:
2205 case RELEASE:
2206 TRACE2(("cache cmd %s\n",nscp->cmnd[0] == RESERVE ?
2207 "RESERVE" : "RELEASE"));
2208 if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
2209 this_cmd = FALSE;
2210 break;
2211
2212 case READ_6:
2213 case WRITE_6:
2214 case READ_10:
2215 case WRITE_10:
2216 case READ_16:
2217 case WRITE_16:
2218 if (ha->hdr[t].media_changed) {
2219 /* return UNIT_ATTENTION */
2220 TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2221 nscp->cmnd[0], t));
2222 ha->hdr[t].media_changed = FALSE;
2223 memset((char*)nscp->sense_buffer,0,16);
2224 nscp->sense_buffer[0] = 0x70;
2225 nscp->sense_buffer[2] = UNIT_ATTENTION;
2226 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2227 if (!nscp_cmndinfo->wait_for_completion)
2228 nscp_cmndinfo->wait_for_completion++;
2229 else
2230 gdth_scsi_done(nscp);
2231 } else if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
2232 this_cmd = FALSE;
2233 break;
2234
2235 default:
2236 TRACE2(("cache cmd %x/%x/%x/%x/%x/%x unknown\n",nscp->cmnd[0],
2237 nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2238 nscp->cmnd[4],nscp->cmnd[5]));
2239 printk("GDT-HA %d: Unknown SCSI command 0x%x to cache service !\n",
2240 ha->hanum, nscp->cmnd[0]);
2241 nscp->result = DID_ABORT << 16;
2242 if (!nscp_cmndinfo->wait_for_completion)
2243 nscp_cmndinfo->wait_for_completion++;
2244 else
2245 gdth_scsi_done(nscp);
2246 break;
2247 }
2248 }
2249
2250 if (!this_cmd)
2251 break;
2252 if (nscp == ha->req_first)
2253 ha->req_first = pscp = (Scsi_Cmnd *)nscp->SCp.ptr;
2254 else
2255 pscp->SCp.ptr = nscp->SCp.ptr;
2256 if (!next_cmd)
2257 break;
2258 }
2259
2260 if (ha->cmd_cnt > 0) {
2261 gdth_release_event(ha);
2262 }
2263
2264 if (!gdth_polling)
2265 spin_unlock_irqrestore(&ha->smp_lock, flags);
2266
2267 if (gdth_polling && ha->cmd_cnt > 0) {
2268 if (!gdth_wait(ha, cmd_index, POLL_TIMEOUT))
2269 printk("GDT-HA %d: Command %d timed out !\n",
2270 ha->hanum, cmd_index);
2271 }
2272}
2273
2274/*
2275 * gdth_copy_internal_data() - copy to/from a buffer onto a scsi_cmnd's
2276 * buffers, kmap_atomic() as needed.
2277 */
2278static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
2279 char *buffer, u16 count)
2280{
2281 u16 cpcount,i, max_sg = scsi_sg_count(scp);
2282 u16 cpsum,cpnow;
2283 struct scatterlist *sl;
2284 char *address;
2285
2286 cpcount = min_t(u16, count, scsi_bufflen(scp));
2287
2288 if (cpcount) {
2289 cpsum=0;
2290 scsi_for_each_sg(scp, sl, max_sg, i) {
2291 unsigned long flags;
2292 cpnow = (u16)sl->length;
2293 TRACE(("copy_internal() now %d sum %d count %d %d\n",
2294 cpnow, cpsum, cpcount, scsi_bufflen(scp)));
2295 if (cpsum+cpnow > cpcount)
2296 cpnow = cpcount - cpsum;
2297 cpsum += cpnow;
2298 if (!sg_page(sl)) {
2299 printk("GDT-HA %d: invalid sc/gt element in gdth_copy_internal_data()\n",
2300 ha->hanum);
2301 return;
2302 }
2303 local_irq_save(flags);
2304 address = kmap_atomic(sg_page(sl)) + sl->offset;
2305 memcpy(address, buffer, cpnow);
2306 flush_dcache_page(sg_page(sl));
2307 kunmap_atomic(address);
2308 local_irq_restore(flags);
2309 if (cpsum == cpcount)
2310 break;
2311 buffer += cpnow;
2312 }
2313 } else if (count) {
2314 printk("GDT-HA %d: SCSI command with no buffers but data transfer expected!\n",
2315 ha->hanum);
2316 WARN_ON(1);
2317 }
2318}
2319
2320static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp)
2321{
2322 u8 t;
2323 gdth_inq_data inq;
2324 gdth_rdcap_data rdc;
2325 gdth_sense_data sd;
2326 gdth_modep_data mpd;
2327 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
2328
2329 t = scp->device->id;
2330 TRACE(("gdth_internal_cache_cmd() cmd 0x%x hdrive %d\n",
2331 scp->cmnd[0],t));
2332
2333 scp->result = DID_OK << 16;
2334 scp->sense_buffer[0] = 0;
2335
2336 switch (scp->cmnd[0]) {
2337 case TEST_UNIT_READY:
2338 case VERIFY:
2339 case START_STOP:
2340 TRACE2(("Test/Verify/Start hdrive %d\n",t));
2341 break;
2342
2343 case INQUIRY:
2344 TRACE2(("Inquiry hdrive %d devtype %d\n",
2345 t,ha->hdr[t].devtype));
2346 inq.type_qual = (ha->hdr[t].devtype&4) ? TYPE_ROM:TYPE_DISK;
2347 /* you can here set all disks to removable, if you want to do
2348 a flush using the ALLOW_MEDIUM_REMOVAL command */
2349 inq.modif_rmb = 0x00;
2350 if ((ha->hdr[t].devtype & 1) ||
2351 (ha->hdr[t].cluster_type & CLUSTER_DRIVE))
2352 inq.modif_rmb = 0x80;
2353 inq.version = 2;
2354 inq.resp_aenc = 2;
2355 inq.add_length= 32;
2356 strcpy(inq.vendor,ha->oem_name);
2357 snprintf(inq.product, sizeof(inq.product), "Host Drive #%02d",t);
2358 strcpy(inq.revision," ");
2359 gdth_copy_internal_data(ha, scp, (char*)&inq, sizeof(gdth_inq_data));
2360 break;
2361
2362 case REQUEST_SENSE:
2363 TRACE2(("Request sense hdrive %d\n",t));
2364 sd.errorcode = 0x70;
2365 sd.segno = 0x00;
2366 sd.key = NO_SENSE;
2367 sd.info = 0;
2368 sd.add_length= 0;
2369 gdth_copy_internal_data(ha, scp, (char*)&sd, sizeof(gdth_sense_data));
2370 break;
2371
2372 case MODE_SENSE:
2373 TRACE2(("Mode sense hdrive %d\n",t));
2374 memset((char*)&mpd,0,sizeof(gdth_modep_data));
2375 mpd.hd.data_length = sizeof(gdth_modep_data);
2376 mpd.hd.dev_par = (ha->hdr[t].devtype&2) ? 0x80:0;
2377 mpd.hd.bd_length = sizeof(mpd.bd);
2378 mpd.bd.block_length[0] = (SECTOR_SIZE & 0x00ff0000) >> 16;
2379 mpd.bd.block_length[1] = (SECTOR_SIZE & 0x0000ff00) >> 8;
2380 mpd.bd.block_length[2] = (SECTOR_SIZE & 0x000000ff);
2381 gdth_copy_internal_data(ha, scp, (char*)&mpd, sizeof(gdth_modep_data));
2382 break;
2383
2384 case READ_CAPACITY:
2385 TRACE2(("Read capacity hdrive %d\n",t));
2386 if (ha->hdr[t].size > (u64)0xffffffff)
2387 rdc.last_block_no = 0xffffffff;
2388 else
2389 rdc.last_block_no = cpu_to_be32(ha->hdr[t].size-1);
2390 rdc.block_length = cpu_to_be32(SECTOR_SIZE);
2391 gdth_copy_internal_data(ha, scp, (char*)&rdc, sizeof(gdth_rdcap_data));
2392 break;
2393
2394 case SERVICE_ACTION_IN_16:
2395 if ((scp->cmnd[1] & 0x1f) == SAI_READ_CAPACITY_16 &&
2396 (ha->cache_feat & GDT_64BIT)) {
2397 gdth_rdcap16_data rdc16;
2398
2399 TRACE2(("Read capacity (16) hdrive %d\n",t));
2400 rdc16.last_block_no = cpu_to_be64(ha->hdr[t].size-1);
2401 rdc16.block_length = cpu_to_be32(SECTOR_SIZE);
2402 gdth_copy_internal_data(ha, scp, (char*)&rdc16,
2403 sizeof(gdth_rdcap16_data));
2404 } else {
2405 scp->result = DID_ABORT << 16;
2406 }
2407 break;
2408
2409 default:
2410 TRACE2(("Internal cache cmd 0x%x unknown\n",scp->cmnd[0]));
2411 break;
2412 }
2413
2414 if (!cmndinfo->wait_for_completion)
2415 cmndinfo->wait_for_completion++;
2416 else
2417 return 1;
2418
2419 return 0;
2420}
2421
2422static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, u16 hdrive)
2423{
2424 register gdth_cmd_str *cmdp;
2425 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
2426 u32 cnt, blockcnt;
2427 u64 no, blockno;
2428 int i, cmd_index, read_write, sgcnt, mode64;
2429
2430 cmdp = ha->pccb;
2431 TRACE(("gdth_fill_cache_cmd() cmd 0x%x cmdsize %d hdrive %d\n",
2432 scp->cmnd[0],scp->cmd_len,hdrive));
2433
2434 if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2435 return 0;
2436
2437 mode64 = (ha->cache_feat & GDT_64BIT) ? TRUE : FALSE;
2438 /* test for READ_16, WRITE_16 if !mode64 ? ---
2439 not required, should not occur due to error return on
2440 READ_CAPACITY_16 */
2441
2442 cmdp->Service = CACHESERVICE;
2443 cmdp->RequestBuffer = scp;
2444 /* search free command index */
2445 if (!(cmd_index=gdth_get_cmd_index(ha))) {
2446 TRACE(("GDT: No free command index found\n"));
2447 return 0;
2448 }
2449 /* if it's the first command, set command semaphore */
2450 if (ha->cmd_cnt == 0)
2451 gdth_set_sema0(ha);
2452
2453 /* fill command */
2454 read_write = 0;
2455 if (cmndinfo->OpCode != -1)
2456 cmdp->OpCode = cmndinfo->OpCode; /* special cache cmd. */
2457 else if (scp->cmnd[0] == RESERVE)
2458 cmdp->OpCode = GDT_RESERVE_DRV;
2459 else if (scp->cmnd[0] == RELEASE)
2460 cmdp->OpCode = GDT_RELEASE_DRV;
2461 else if (scp->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
2462 if (scp->cmnd[4] & 1) /* prevent ? */
2463 cmdp->OpCode = GDT_MOUNT;
2464 else if (scp->cmnd[3] & 1) /* removable drive ? */
2465 cmdp->OpCode = GDT_UNMOUNT;
2466 else
2467 cmdp->OpCode = GDT_FLUSH;
2468 } else if (scp->cmnd[0] == WRITE_6 || scp->cmnd[0] == WRITE_10 ||
2469 scp->cmnd[0] == WRITE_12 || scp->cmnd[0] == WRITE_16
2470 ) {
2471 read_write = 1;
2472 if (gdth_write_through || ((ha->hdr[hdrive].rw_attribs & 1) &&
2473 (ha->cache_feat & GDT_WR_THROUGH)))
2474 cmdp->OpCode = GDT_WRITE_THR;
2475 else
2476 cmdp->OpCode = GDT_WRITE;
2477 } else {
2478 read_write = 2;
2479 cmdp->OpCode = GDT_READ;
2480 }
2481
2482 cmdp->BoardNode = LOCALBOARD;
2483 if (mode64) {
2484 cmdp->u.cache64.DeviceNo = hdrive;
2485 cmdp->u.cache64.BlockNo = 1;
2486 cmdp->u.cache64.sg_canz = 0;
2487 } else {
2488 cmdp->u.cache.DeviceNo = hdrive;
2489 cmdp->u.cache.BlockNo = 1;
2490 cmdp->u.cache.sg_canz = 0;
2491 }
2492
2493 if (read_write) {
2494 if (scp->cmd_len == 16) {
2495 memcpy(&no, &scp->cmnd[2], sizeof(u64));
2496 blockno = be64_to_cpu(no);
2497 memcpy(&cnt, &scp->cmnd[10], sizeof(u32));
2498 blockcnt = be32_to_cpu(cnt);
2499 } else if (scp->cmd_len == 10) {
2500 memcpy(&no, &scp->cmnd[2], sizeof(u32));
2501 blockno = be32_to_cpu(no);
2502 memcpy(&cnt, &scp->cmnd[7], sizeof(u16));
2503 blockcnt = be16_to_cpu(cnt);
2504 } else {
2505 memcpy(&no, &scp->cmnd[0], sizeof(u32));
2506 blockno = be32_to_cpu(no) & 0x001fffffUL;
2507 blockcnt= scp->cmnd[4]==0 ? 0x100 : scp->cmnd[4];
2508 }
2509 if (mode64) {
2510 cmdp->u.cache64.BlockNo = blockno;
2511 cmdp->u.cache64.BlockCnt = blockcnt;
2512 } else {
2513 cmdp->u.cache.BlockNo = (u32)blockno;
2514 cmdp->u.cache.BlockCnt = blockcnt;
2515 }
2516
2517 if (scsi_bufflen(scp)) {
2518 cmndinfo->dma_dir = (read_write == 1 ?
2519 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
2520 sgcnt = pci_map_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
2521 cmndinfo->dma_dir);
2522 if (mode64) {
2523 struct scatterlist *sl;
2524
2525 cmdp->u.cache64.DestAddr= (u64)-1;
2526 cmdp->u.cache64.sg_canz = sgcnt;
2527 scsi_for_each_sg(scp, sl, sgcnt, i) {
2528 cmdp->u.cache64.sg_lst[i].sg_ptr = sg_dma_address(sl);
2529#ifdef GDTH_DMA_STATISTICS
2530 if (cmdp->u.cache64.sg_lst[i].sg_ptr > (u64)0xffffffff)
2531 ha->dma64_cnt++;
2532 else
2533 ha->dma32_cnt++;
2534#endif
2535 cmdp->u.cache64.sg_lst[i].sg_len = sg_dma_len(sl);
2536 }
2537 } else {
2538 struct scatterlist *sl;
2539
2540 cmdp->u.cache.DestAddr= 0xffffffff;
2541 cmdp->u.cache.sg_canz = sgcnt;
2542 scsi_for_each_sg(scp, sl, sgcnt, i) {
2543 cmdp->u.cache.sg_lst[i].sg_ptr = sg_dma_address(sl);
2544#ifdef GDTH_DMA_STATISTICS
2545 ha->dma32_cnt++;
2546#endif
2547 cmdp->u.cache.sg_lst[i].sg_len = sg_dma_len(sl);
2548 }
2549 }
2550
2551#ifdef GDTH_STATISTICS
2552 if (max_sg < (u32)sgcnt) {
2553 max_sg = (u32)sgcnt;
2554 TRACE3(("GDT: max_sg = %d\n",max_sg));
2555 }
2556#endif
2557
2558 }
2559 }
2560 /* evaluate command size, check space */
2561 if (mode64) {
2562 TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2563 cmdp->u.cache64.DestAddr,cmdp->u.cache64.sg_canz,
2564 cmdp->u.cache64.sg_lst[0].sg_ptr,
2565 cmdp->u.cache64.sg_lst[0].sg_len));
2566 TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2567 cmdp->OpCode,cmdp->u.cache64.BlockNo,cmdp->u.cache64.BlockCnt));
2568 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) +
2569 (u16)cmdp->u.cache64.sg_canz * sizeof(gdth_sg64_str);
2570 } else {
2571 TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2572 cmdp->u.cache.DestAddr,cmdp->u.cache.sg_canz,
2573 cmdp->u.cache.sg_lst[0].sg_ptr,
2574 cmdp->u.cache.sg_lst[0].sg_len));
2575 TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2576 cmdp->OpCode,cmdp->u.cache.BlockNo,cmdp->u.cache.BlockCnt));
2577 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) +
2578 (u16)cmdp->u.cache.sg_canz * sizeof(gdth_sg_str);
2579 }
2580 if (ha->cmd_len & 3)
2581 ha->cmd_len += (4 - (ha->cmd_len & 3));
2582
2583 if (ha->cmd_cnt > 0) {
2584 if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
2585 ha->ic_all_size) {
2586 TRACE2(("gdth_fill_cache() DPMEM overflow\n"));
2587 ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
2588 return 0;
2589 }
2590 }
2591
2592 /* copy command */
2593 gdth_copy_command(ha);
2594 return cmd_index;
2595}
2596
2597static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, u8 b)
2598{
2599 register gdth_cmd_str *cmdp;
2600 u16 i;
2601 dma_addr_t sense_paddr;
2602 int cmd_index, sgcnt, mode64;
2603 u8 t,l;
2604 struct page *page;
2605 unsigned long offset;
2606 struct gdth_cmndinfo *cmndinfo;
2607
2608 t = scp->device->id;
2609 l = scp->device->lun;
2610 cmdp = ha->pccb;
2611 TRACE(("gdth_fill_raw_cmd() cmd 0x%x bus %d ID %d LUN %d\n",
2612 scp->cmnd[0],b,t,l));
2613
2614 if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2615 return 0;
2616
2617 mode64 = (ha->raw_feat & GDT_64BIT) ? TRUE : FALSE;
2618
2619 cmdp->Service = SCSIRAWSERVICE;
2620 cmdp->RequestBuffer = scp;
2621 /* search free command index */
2622 if (!(cmd_index=gdth_get_cmd_index(ha))) {
2623 TRACE(("GDT: No free command index found\n"));
2624 return 0;
2625 }
2626 /* if it's the first command, set command semaphore */
2627 if (ha->cmd_cnt == 0)
2628 gdth_set_sema0(ha);
2629
2630 cmndinfo = gdth_cmnd_priv(scp);
2631 /* fill command */
2632 if (cmndinfo->OpCode != -1) {
2633 cmdp->OpCode = cmndinfo->OpCode; /* special raw cmd. */
2634 cmdp->BoardNode = LOCALBOARD;
2635 if (mode64) {
2636 cmdp->u.raw64.direction = (cmndinfo->phase >> 8);
2637 TRACE2(("special raw cmd 0x%x param 0x%x\n",
2638 cmdp->OpCode, cmdp->u.raw64.direction));
2639 /* evaluate command size */
2640 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst);
2641 } else {
2642 cmdp->u.raw.direction = (cmndinfo->phase >> 8);
2643 TRACE2(("special raw cmd 0x%x param 0x%x\n",
2644 cmdp->OpCode, cmdp->u.raw.direction));
2645 /* evaluate command size */
2646 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst);
2647 }
2648
2649 } else {
2650 page = virt_to_page(scp->sense_buffer);
2651 offset = (unsigned long)scp->sense_buffer & ~PAGE_MASK;
2652 sense_paddr = pci_map_page(ha->pdev,page,offset,
2653 16,PCI_DMA_FROMDEVICE);
2654
2655 cmndinfo->sense_paddr = sense_paddr;
2656 cmdp->OpCode = GDT_WRITE; /* always */
2657 cmdp->BoardNode = LOCALBOARD;
2658 if (mode64) {
2659 cmdp->u.raw64.reserved = 0;
2660 cmdp->u.raw64.mdisc_time = 0;
2661 cmdp->u.raw64.mcon_time = 0;
2662 cmdp->u.raw64.clen = scp->cmd_len;
2663 cmdp->u.raw64.target = t;
2664 cmdp->u.raw64.lun = l;
2665 cmdp->u.raw64.bus = b;
2666 cmdp->u.raw64.priority = 0;
2667 cmdp->u.raw64.sdlen = scsi_bufflen(scp);
2668 cmdp->u.raw64.sense_len = 16;
2669 cmdp->u.raw64.sense_data = sense_paddr;
2670 cmdp->u.raw64.direction =
2671 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
2672 memcpy(cmdp->u.raw64.cmd,scp->cmnd,16);
2673 cmdp->u.raw64.sg_ranz = 0;
2674 } else {
2675 cmdp->u.raw.reserved = 0;
2676 cmdp->u.raw.mdisc_time = 0;
2677 cmdp->u.raw.mcon_time = 0;
2678 cmdp->u.raw.clen = scp->cmd_len;
2679 cmdp->u.raw.target = t;
2680 cmdp->u.raw.lun = l;
2681 cmdp->u.raw.bus = b;
2682 cmdp->u.raw.priority = 0;
2683 cmdp->u.raw.link_p = 0;
2684 cmdp->u.raw.sdlen = scsi_bufflen(scp);
2685 cmdp->u.raw.sense_len = 16;
2686 cmdp->u.raw.sense_data = sense_paddr;
2687 cmdp->u.raw.direction =
2688 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
2689 memcpy(cmdp->u.raw.cmd,scp->cmnd,12);
2690 cmdp->u.raw.sg_ranz = 0;
2691 }
2692
2693 if (scsi_bufflen(scp)) {
2694 cmndinfo->dma_dir = PCI_DMA_BIDIRECTIONAL;
2695 sgcnt = pci_map_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
2696 cmndinfo->dma_dir);
2697 if (mode64) {
2698 struct scatterlist *sl;
2699
2700 cmdp->u.raw64.sdata = (u64)-1;
2701 cmdp->u.raw64.sg_ranz = sgcnt;
2702 scsi_for_each_sg(scp, sl, sgcnt, i) {
2703 cmdp->u.raw64.sg_lst[i].sg_ptr = sg_dma_address(sl);
2704#ifdef GDTH_DMA_STATISTICS
2705 if (cmdp->u.raw64.sg_lst[i].sg_ptr > (u64)0xffffffff)
2706 ha->dma64_cnt++;
2707 else
2708 ha->dma32_cnt++;
2709#endif
2710 cmdp->u.raw64.sg_lst[i].sg_len = sg_dma_len(sl);
2711 }
2712 } else {
2713 struct scatterlist *sl;
2714
2715 cmdp->u.raw.sdata = 0xffffffff;
2716 cmdp->u.raw.sg_ranz = sgcnt;
2717 scsi_for_each_sg(scp, sl, sgcnt, i) {
2718 cmdp->u.raw.sg_lst[i].sg_ptr = sg_dma_address(sl);
2719#ifdef GDTH_DMA_STATISTICS
2720 ha->dma32_cnt++;
2721#endif
2722 cmdp->u.raw.sg_lst[i].sg_len = sg_dma_len(sl);
2723 }
2724 }
2725
2726#ifdef GDTH_STATISTICS
2727 if (max_sg < sgcnt) {
2728 max_sg = sgcnt;
2729 TRACE3(("GDT: max_sg = %d\n",sgcnt));
2730 }
2731#endif
2732
2733 }
2734 if (mode64) {
2735 TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2736 cmdp->u.raw64.sdata,cmdp->u.raw64.sg_ranz,
2737 cmdp->u.raw64.sg_lst[0].sg_ptr,
2738 cmdp->u.raw64.sg_lst[0].sg_len));
2739 /* evaluate command size */
2740 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) +
2741 (u16)cmdp->u.raw64.sg_ranz * sizeof(gdth_sg64_str);
2742 } else {
2743 TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2744 cmdp->u.raw.sdata,cmdp->u.raw.sg_ranz,
2745 cmdp->u.raw.sg_lst[0].sg_ptr,
2746 cmdp->u.raw.sg_lst[0].sg_len));
2747 /* evaluate command size */
2748 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) +
2749 (u16)cmdp->u.raw.sg_ranz * sizeof(gdth_sg_str);
2750 }
2751 }
2752 /* check space */
2753 if (ha->cmd_len & 3)
2754 ha->cmd_len += (4 - (ha->cmd_len & 3));
2755
2756 if (ha->cmd_cnt > 0) {
2757 if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
2758 ha->ic_all_size) {
2759 TRACE2(("gdth_fill_raw() DPMEM overflow\n"));
2760 ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
2761 return 0;
2762 }
2763 }
2764
2765 /* copy command */
2766 gdth_copy_command(ha);
2767 return cmd_index;
2768}
2769
2770static int gdth_special_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp)
2771{
2772 register gdth_cmd_str *cmdp;
2773 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
2774 int cmd_index;
2775
2776 cmdp= ha->pccb;
2777 TRACE2(("gdth_special_cmd(): "));
2778
2779 if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2780 return 0;
2781
2782 *cmdp = *cmndinfo->internal_cmd_str;
2783 cmdp->RequestBuffer = scp;
2784
2785 /* search free command index */
2786 if (!(cmd_index=gdth_get_cmd_index(ha))) {
2787 TRACE(("GDT: No free command index found\n"));
2788 return 0;
2789 }
2790
2791 /* if it's the first command, set command semaphore */
2792 if (ha->cmd_cnt == 0)
2793 gdth_set_sema0(ha);
2794
2795 /* evaluate command size, check space */
2796 if (cmdp->OpCode == GDT_IOCTL) {
2797 TRACE2(("IOCTL\n"));
2798 ha->cmd_len =
2799 GDTOFFSOF(gdth_cmd_str,u.ioctl.p_param) + sizeof(u64);
2800 } else if (cmdp->Service == CACHESERVICE) {
2801 TRACE2(("cache command %d\n",cmdp->OpCode));
2802 if (ha->cache_feat & GDT_64BIT)
2803 ha->cmd_len =
2804 GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) + sizeof(gdth_sg64_str);
2805 else
2806 ha->cmd_len =
2807 GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) + sizeof(gdth_sg_str);
2808 } else if (cmdp->Service == SCSIRAWSERVICE) {
2809 TRACE2(("raw command %d\n",cmdp->OpCode));
2810 if (ha->raw_feat & GDT_64BIT)
2811 ha->cmd_len =
2812 GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) + sizeof(gdth_sg64_str);
2813 else
2814 ha->cmd_len =
2815 GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) + sizeof(gdth_sg_str);
2816 }
2817
2818 if (ha->cmd_len & 3)
2819 ha->cmd_len += (4 - (ha->cmd_len & 3));
2820
2821 if (ha->cmd_cnt > 0) {
2822 if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
2823 ha->ic_all_size) {
2824 TRACE2(("gdth_special_cmd() DPMEM overflow\n"));
2825 ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
2826 return 0;
2827 }
2828 }
2829
2830 /* copy command */
2831 gdth_copy_command(ha);
2832 return cmd_index;
2833}
2834
2835
2836/* Controller event handling functions */
2837static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, u16 source,
2838 u16 idx, gdth_evt_data *evt)
2839{
2840 gdth_evt_str *e;
2841
2842 /* no GDTH_LOCK_HA() ! */
2843 TRACE2(("gdth_store_event() source %d idx %d\n", source, idx));
2844 if (source == 0) /* no source -> no event */
2845 return NULL;
2846
2847 if (ebuffer[elastidx].event_source == source &&
2848 ebuffer[elastidx].event_idx == idx &&
2849 ((evt->size != 0 && ebuffer[elastidx].event_data.size != 0 &&
2850 !memcmp((char *)&ebuffer[elastidx].event_data.eu,
2851 (char *)&evt->eu, evt->size)) ||
2852 (evt->size == 0 && ebuffer[elastidx].event_data.size == 0 &&
2853 !strcmp((char *)&ebuffer[elastidx].event_data.event_string,
2854 (char *)&evt->event_string)))) {
2855 e = &ebuffer[elastidx];
2856 e->last_stamp = (u32)ktime_get_real_seconds();
2857 ++e->same_count;
2858 } else {
2859 if (ebuffer[elastidx].event_source != 0) { /* entry not free ? */
2860 ++elastidx;
2861 if (elastidx == MAX_EVENTS)
2862 elastidx = 0;
2863 if (elastidx == eoldidx) { /* reached mark ? */
2864 ++eoldidx;
2865 if (eoldidx == MAX_EVENTS)
2866 eoldidx = 0;
2867 }
2868 }
2869 e = &ebuffer[elastidx];
2870 e->event_source = source;
2871 e->event_idx = idx;
2872 e->first_stamp = e->last_stamp = (u32)ktime_get_real_seconds();
2873 e->same_count = 1;
2874 e->event_data = *evt;
2875 e->application = 0;
2876 }
2877 return e;
2878}
2879
2880static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr)
2881{
2882 gdth_evt_str *e;
2883 int eindex;
2884 unsigned long flags;
2885
2886 TRACE2(("gdth_read_event() handle %d\n", handle));
2887 spin_lock_irqsave(&ha->smp_lock, flags);
2888 if (handle == -1)
2889 eindex = eoldidx;
2890 else
2891 eindex = handle;
2892 estr->event_source = 0;
2893
2894 if (eindex < 0 || eindex >= MAX_EVENTS) {
2895 spin_unlock_irqrestore(&ha->smp_lock, flags);
2896 return eindex;
2897 }
2898 e = &ebuffer[eindex];
2899 if (e->event_source != 0) {
2900 if (eindex != elastidx) {
2901 if (++eindex == MAX_EVENTS)
2902 eindex = 0;
2903 } else {
2904 eindex = -1;
2905 }
2906 memcpy(estr, e, sizeof(gdth_evt_str));
2907 }
2908 spin_unlock_irqrestore(&ha->smp_lock, flags);
2909 return eindex;
2910}
2911
2912static void gdth_readapp_event(gdth_ha_str *ha,
2913 u8 application, gdth_evt_str *estr)
2914{
2915 gdth_evt_str *e;
2916 int eindex;
2917 unsigned long flags;
2918 u8 found = FALSE;
2919
2920 TRACE2(("gdth_readapp_event() app. %d\n", application));
2921 spin_lock_irqsave(&ha->smp_lock, flags);
2922 eindex = eoldidx;
2923 for (;;) {
2924 e = &ebuffer[eindex];
2925 if (e->event_source == 0)
2926 break;
2927 if ((e->application & application) == 0) {
2928 e->application |= application;
2929 found = TRUE;
2930 break;
2931 }
2932 if (eindex == elastidx)
2933 break;
2934 if (++eindex == MAX_EVENTS)
2935 eindex = 0;
2936 }
2937 if (found)
2938 memcpy(estr, e, sizeof(gdth_evt_str));
2939 else
2940 estr->event_source = 0;
2941 spin_unlock_irqrestore(&ha->smp_lock, flags);
2942}
2943
2944static void gdth_clear_events(void)
2945{
2946 TRACE(("gdth_clear_events()"));
2947
2948 eoldidx = elastidx = 0;
2949 ebuffer[0].event_source = 0;
2950}
2951
2952
2953/* SCSI interface functions */
2954
2955static irqreturn_t __gdth_interrupt(gdth_ha_str *ha,
2956 int gdth_from_wait, int* pIndex)
2957{
2958 gdt6m_dpram_str __iomem *dp6m_ptr = NULL;
2959 gdt6_dpram_str __iomem *dp6_ptr;
2960 gdt2_dpram_str __iomem *dp2_ptr;
2961 Scsi_Cmnd *scp;
2962 int rval, i;
2963 u8 IStatus;
2964 u16 Service;
2965 unsigned long flags = 0;
2966#ifdef INT_COAL
2967 int coalesced = FALSE;
2968 int next = FALSE;
2969 gdth_coal_status *pcs = NULL;
2970 int act_int_coal = 0;
2971#endif
2972
2973 TRACE(("gdth_interrupt() IRQ %d\n", ha->irq));
2974
2975 /* if polling and not from gdth_wait() -> return */
2976 if (gdth_polling) {
2977 if (!gdth_from_wait) {
2978 return IRQ_HANDLED;
2979 }
2980 }
2981
2982 if (!gdth_polling)
2983 spin_lock_irqsave(&ha->smp_lock, flags);
2984
2985 /* search controller */
2986 IStatus = gdth_get_status(ha);
2987 if (IStatus == 0) {
2988 /* spurious interrupt */
2989 if (!gdth_polling)
2990 spin_unlock_irqrestore(&ha->smp_lock, flags);
2991 return IRQ_HANDLED;
2992 }
2993
2994#ifdef GDTH_STATISTICS
2995 ++act_ints;
2996#endif
2997
2998#ifdef INT_COAL
2999 /* See if the fw is returning coalesced status */
3000 if (IStatus == COALINDEX) {
3001 /* Coalesced status. Setup the initial status
3002 buffer pointer and flags */
3003 pcs = ha->coal_stat;
3004 coalesced = TRUE;
3005 next = TRUE;
3006 }
3007
3008 do {
3009 if (coalesced) {
3010 /* For coalesced requests all status
3011 information is found in the status buffer */
3012 IStatus = (u8)(pcs->status & 0xff);
3013 }
3014#endif
3015
3016 if (ha->type == GDT_EISA) {
3017 if (IStatus & 0x80) { /* error flag */
3018 IStatus &= ~0x80;
3019 ha->status = inw(ha->bmic + MAILBOXREG+8);
3020 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3021 } else /* no error */
3022 ha->status = S_OK;
3023 ha->info = inl(ha->bmic + MAILBOXREG+12);
3024 ha->service = inw(ha->bmic + MAILBOXREG+10);
3025 ha->info2 = inl(ha->bmic + MAILBOXREG+4);
3026
3027 outb(0xff, ha->bmic + EDOORREG); /* acknowledge interrupt */
3028 outb(0x00, ha->bmic + SEMA1REG); /* reset status semaphore */
3029 } else if (ha->type == GDT_ISA) {
3030 dp2_ptr = ha->brd;
3031 if (IStatus & 0x80) { /* error flag */
3032 IStatus &= ~0x80;
3033 ha->status = readw(&dp2_ptr->u.ic.Status);
3034 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3035 } else /* no error */
3036 ha->status = S_OK;
3037 ha->info = readl(&dp2_ptr->u.ic.Info[0]);
3038 ha->service = readw(&dp2_ptr->u.ic.Service);
3039 ha->info2 = readl(&dp2_ptr->u.ic.Info[1]);
3040
3041 writeb(0xff, &dp2_ptr->io.irqdel); /* acknowledge interrupt */
3042 writeb(0, &dp2_ptr->u.ic.Cmd_Index);/* reset command index */
3043 writeb(0, &dp2_ptr->io.Sema1); /* reset status semaphore */
3044 } else if (ha->type == GDT_PCI) {
3045 dp6_ptr = ha->brd;
3046 if (IStatus & 0x80) { /* error flag */
3047 IStatus &= ~0x80;
3048 ha->status = readw(&dp6_ptr->u.ic.Status);
3049 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3050 } else /* no error */
3051 ha->status = S_OK;
3052 ha->info = readl(&dp6_ptr->u.ic.Info[0]);
3053 ha->service = readw(&dp6_ptr->u.ic.Service);
3054 ha->info2 = readl(&dp6_ptr->u.ic.Info[1]);
3055
3056 writeb(0xff, &dp6_ptr->io.irqdel); /* acknowledge interrupt */
3057 writeb(0, &dp6_ptr->u.ic.Cmd_Index);/* reset command index */
3058 writeb(0, &dp6_ptr->io.Sema1); /* reset status semaphore */
3059 } else if (ha->type == GDT_PCINEW) {
3060 if (IStatus & 0x80) { /* error flag */
3061 IStatus &= ~0x80;
3062 ha->status = inw(PTR2USHORT(&ha->plx->status));
3063 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3064 } else
3065 ha->status = S_OK;
3066 ha->info = inl(PTR2USHORT(&ha->plx->info[0]));
3067 ha->service = inw(PTR2USHORT(&ha->plx->service));
3068 ha->info2 = inl(PTR2USHORT(&ha->plx->info[1]));
3069
3070 outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
3071 outb(0x00, PTR2USHORT(&ha->plx->sema1_reg));
3072 } else if (ha->type == GDT_PCIMPR) {
3073 dp6m_ptr = ha->brd;
3074 if (IStatus & 0x80) { /* error flag */
3075 IStatus &= ~0x80;
3076#ifdef INT_COAL
3077 if (coalesced)
3078 ha->status = pcs->ext_status & 0xffff;
3079 else
3080#endif
3081 ha->status = readw(&dp6m_ptr->i960r.status);
3082 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3083 } else /* no error */
3084 ha->status = S_OK;
3085#ifdef INT_COAL
3086 /* get information */
3087 if (coalesced) {
3088 ha->info = pcs->info0;
3089 ha->info2 = pcs->info1;
3090 ha->service = (pcs->ext_status >> 16) & 0xffff;
3091 } else
3092#endif
3093 {
3094 ha->info = readl(&dp6m_ptr->i960r.info[0]);
3095 ha->service = readw(&dp6m_ptr->i960r.service);
3096 ha->info2 = readl(&dp6m_ptr->i960r.info[1]);
3097 }
3098 /* event string */
3099 if (IStatus == ASYNCINDEX) {
3100 if (ha->service != SCREENSERVICE &&
3101 (ha->fw_vers & 0xff) >= 0x1a) {
3102 ha->dvr.severity = readb
3103 (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.severity);
3104 for (i = 0; i < 256; ++i) {
3105 ha->dvr.event_string[i] = readb
3106 (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.evt_str[i]);
3107 if (ha->dvr.event_string[i] == 0)
3108 break;
3109 }
3110 }
3111 }
3112#ifdef INT_COAL
3113 /* Make sure that non coalesced interrupts get cleared
3114 before being handled by gdth_async_event/gdth_sync_event */
3115 if (!coalesced)
3116#endif
3117 {
3118 writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3119 writeb(0, &dp6m_ptr->i960r.sema1_reg);
3120 }
3121 } else {
3122 TRACE2(("gdth_interrupt() unknown controller type\n"));
3123 if (!gdth_polling)
3124 spin_unlock_irqrestore(&ha->smp_lock, flags);
3125 return IRQ_HANDLED;
3126 }
3127
3128 TRACE(("gdth_interrupt() index %d stat %d info %d\n",
3129 IStatus,ha->status,ha->info));
3130
3131 if (gdth_from_wait) {
3132 *pIndex = (int)IStatus;
3133 }
3134
3135 if (IStatus == ASYNCINDEX) {
3136 TRACE2(("gdth_interrupt() async. event\n"));
3137 gdth_async_event(ha);
3138 if (!gdth_polling)
3139 spin_unlock_irqrestore(&ha->smp_lock, flags);
3140 gdth_next(ha);
3141 return IRQ_HANDLED;
3142 }
3143
3144 if (IStatus == SPEZINDEX) {
3145 TRACE2(("Service unknown or not initialized !\n"));
3146 ha->dvr.size = sizeof(ha->dvr.eu.driver);
3147 ha->dvr.eu.driver.ionode = ha->hanum;
3148 gdth_store_event(ha, ES_DRIVER, 4, &ha->dvr);
3149 if (!gdth_polling)
3150 spin_unlock_irqrestore(&ha->smp_lock, flags);
3151 return IRQ_HANDLED;
3152 }
3153 scp = ha->cmd_tab[IStatus-2].cmnd;
3154 Service = ha->cmd_tab[IStatus-2].service;
3155 ha->cmd_tab[IStatus-2].cmnd = UNUSED_CMND;
3156 if (scp == UNUSED_CMND) {
3157 TRACE2(("gdth_interrupt() index to unused command (%d)\n",IStatus));
3158 ha->dvr.size = sizeof(ha->dvr.eu.driver);
3159 ha->dvr.eu.driver.ionode = ha->hanum;
3160 ha->dvr.eu.driver.index = IStatus;
3161 gdth_store_event(ha, ES_DRIVER, 1, &ha->dvr);
3162 if (!gdth_polling)
3163 spin_unlock_irqrestore(&ha->smp_lock, flags);
3164 return IRQ_HANDLED;
3165 }
3166 if (scp == INTERNAL_CMND) {
3167 TRACE(("gdth_interrupt() answer to internal command\n"));
3168 if (!gdth_polling)
3169 spin_unlock_irqrestore(&ha->smp_lock, flags);
3170 return IRQ_HANDLED;
3171 }
3172
3173 TRACE(("gdth_interrupt() sync. status\n"));
3174 rval = gdth_sync_event(ha,Service,IStatus,scp);
3175 if (!gdth_polling)
3176 spin_unlock_irqrestore(&ha->smp_lock, flags);
3177 if (rval == 2) {
3178 gdth_putq(ha, scp, gdth_cmnd_priv(scp)->priority);
3179 } else if (rval == 1) {
3180 gdth_scsi_done(scp);
3181 }
3182
3183#ifdef INT_COAL
3184 if (coalesced) {
3185 /* go to the next status in the status buffer */
3186 ++pcs;
3187#ifdef GDTH_STATISTICS
3188 ++act_int_coal;
3189 if (act_int_coal > max_int_coal) {
3190 max_int_coal = act_int_coal;
3191 printk("GDT: max_int_coal = %d\n",(u16)max_int_coal);
3192 }
3193#endif
3194 /* see if there is another status */
3195 if (pcs->status == 0)
3196 /* Stop the coalesce loop */
3197 next = FALSE;
3198 }
3199 } while (next);
3200
3201 /* coalescing only for new GDT_PCIMPR controllers available */
3202 if (ha->type == GDT_PCIMPR && coalesced) {
3203 writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3204 writeb(0, &dp6m_ptr->i960r.sema1_reg);
3205 }
3206#endif
3207
3208 gdth_next(ha);
3209 return IRQ_HANDLED;
3210}
3211
3212static irqreturn_t gdth_interrupt(int irq, void *dev_id)
3213{
3214 gdth_ha_str *ha = dev_id;
3215
3216 return __gdth_interrupt(ha, false, NULL);
3217}
3218
3219static int gdth_sync_event(gdth_ha_str *ha, int service, u8 index,
3220 Scsi_Cmnd *scp)
3221{
3222 gdth_msg_str *msg;
3223 gdth_cmd_str *cmdp;
3224 u8 b, t;
3225 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
3226
3227 cmdp = ha->pccb;
3228 TRACE(("gdth_sync_event() serv %d status %d\n",
3229 service,ha->status));
3230
3231 if (service == SCREENSERVICE) {
3232 msg = ha->pmsg;
3233 TRACE(("len: %d, answer: %d, ext: %d, alen: %d\n",
3234 msg->msg_len,msg->msg_answer,msg->msg_ext,msg->msg_alen));
3235 if (msg->msg_len > MSGLEN+1)
3236 msg->msg_len = MSGLEN+1;
3237 if (msg->msg_len)
3238 if (!(msg->msg_answer && msg->msg_ext)) {
3239 msg->msg_text[msg->msg_len] = '\0';
3240 printk("%s",msg->msg_text);
3241 }
3242
3243 if (msg->msg_ext && !msg->msg_answer) {
3244 while (gdth_test_busy(ha))
3245 gdth_delay(0);
3246 cmdp->Service = SCREENSERVICE;
3247 cmdp->RequestBuffer = SCREEN_CMND;
3248 gdth_get_cmd_index(ha);
3249 gdth_set_sema0(ha);
3250 cmdp->OpCode = GDT_READ;
3251 cmdp->BoardNode = LOCALBOARD;
3252 cmdp->u.screen.reserved = 0;
3253 cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3254 cmdp->u.screen.su.msg.msg_addr = ha->msg_phys;
3255 ha->cmd_offs_dpmem = 0;
3256 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3257 + sizeof(u64);
3258 ha->cmd_cnt = 0;
3259 gdth_copy_command(ha);
3260 gdth_release_event(ha);
3261 return 0;
3262 }
3263
3264 if (msg->msg_answer && msg->msg_alen) {
3265 /* default answers (getchar() not possible) */
3266 if (msg->msg_alen == 1) {
3267 msg->msg_alen = 0;
3268 msg->msg_len = 1;
3269 msg->msg_text[0] = 0;
3270 } else {
3271 msg->msg_alen -= 2;
3272 msg->msg_len = 2;
3273 msg->msg_text[0] = 1;
3274 msg->msg_text[1] = 0;
3275 }
3276 msg->msg_ext = 0;
3277 msg->msg_answer = 0;
3278 while (gdth_test_busy(ha))
3279 gdth_delay(0);
3280 cmdp->Service = SCREENSERVICE;
3281 cmdp->RequestBuffer = SCREEN_CMND;
3282 gdth_get_cmd_index(ha);
3283 gdth_set_sema0(ha);
3284 cmdp->OpCode = GDT_WRITE;
3285 cmdp->BoardNode = LOCALBOARD;
3286 cmdp->u.screen.reserved = 0;
3287 cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3288 cmdp->u.screen.su.msg.msg_addr = ha->msg_phys;
3289 ha->cmd_offs_dpmem = 0;
3290 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3291 + sizeof(u64);
3292 ha->cmd_cnt = 0;
3293 gdth_copy_command(ha);
3294 gdth_release_event(ha);
3295 return 0;
3296 }
3297 printk("\n");
3298
3299 } else {
3300 b = scp->device->channel;
3301 t = scp->device->id;
3302 if (cmndinfo->OpCode == -1 && b != ha->virt_bus) {
3303 ha->raw[BUS_L2P(ha,b)].io_cnt[t]--;
3304 }
3305 /* cache or raw service */
3306 if (ha->status == S_BSY) {
3307 TRACE2(("Controller busy -> retry !\n"));
3308 if (cmndinfo->OpCode == GDT_MOUNT)
3309 cmndinfo->OpCode = GDT_CLUST_INFO;
3310 /* retry */
3311 return 2;
3312 }
3313 if (scsi_bufflen(scp))
3314 pci_unmap_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
3315 cmndinfo->dma_dir);
3316
3317 if (cmndinfo->sense_paddr)
3318 pci_unmap_page(ha->pdev, cmndinfo->sense_paddr, 16,
3319 PCI_DMA_FROMDEVICE);
3320
3321 if (ha->status == S_OK) {
3322 cmndinfo->status = S_OK;
3323 cmndinfo->info = ha->info;
3324 if (cmndinfo->OpCode != -1) {
3325 TRACE2(("gdth_sync_event(): special cmd 0x%x OK\n",
3326 cmndinfo->OpCode));
3327 /* special commands GDT_CLUST_INFO/GDT_MOUNT ? */
3328 if (cmndinfo->OpCode == GDT_CLUST_INFO) {
3329 ha->hdr[t].cluster_type = (u8)ha->info;
3330 if (!(ha->hdr[t].cluster_type &
3331 CLUSTER_MOUNTED)) {
3332 /* NOT MOUNTED -> MOUNT */
3333 cmndinfo->OpCode = GDT_MOUNT;
3334 if (ha->hdr[t].cluster_type &
3335 CLUSTER_RESERVED) {
3336 /* cluster drive RESERVED (on the other node) */
3337 cmndinfo->phase = -2; /* reservation conflict */
3338 }
3339 } else {
3340 cmndinfo->OpCode = -1;
3341 }
3342 } else {
3343 if (cmndinfo->OpCode == GDT_MOUNT) {
3344 ha->hdr[t].cluster_type |= CLUSTER_MOUNTED;
3345 ha->hdr[t].media_changed = TRUE;
3346 } else if (cmndinfo->OpCode == GDT_UNMOUNT) {
3347 ha->hdr[t].cluster_type &= ~CLUSTER_MOUNTED;
3348 ha->hdr[t].media_changed = TRUE;
3349 }
3350 cmndinfo->OpCode = -1;
3351 }
3352 /* retry */
3353 cmndinfo->priority = HIGH_PRI;
3354 return 2;
3355 } else {
3356 /* RESERVE/RELEASE ? */
3357 if (scp->cmnd[0] == RESERVE) {
3358 ha->hdr[t].cluster_type |= CLUSTER_RESERVED;
3359 } else if (scp->cmnd[0] == RELEASE) {
3360 ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3361 }
3362 scp->result = DID_OK << 16;
3363 scp->sense_buffer[0] = 0;
3364 }
3365 } else {
3366 cmndinfo->status = ha->status;
3367 cmndinfo->info = ha->info;
3368
3369 if (cmndinfo->OpCode != -1) {
3370 TRACE2(("gdth_sync_event(): special cmd 0x%x error 0x%x\n",
3371 cmndinfo->OpCode, ha->status));
3372 if (cmndinfo->OpCode == GDT_SCAN_START ||
3373 cmndinfo->OpCode == GDT_SCAN_END) {
3374 cmndinfo->OpCode = -1;
3375 /* retry */
3376 cmndinfo->priority = HIGH_PRI;
3377 return 2;
3378 }
3379 memset((char*)scp->sense_buffer,0,16);
3380 scp->sense_buffer[0] = 0x70;
3381 scp->sense_buffer[2] = NOT_READY;
3382 scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3383 } else if (service == CACHESERVICE) {
3384 if (ha->status == S_CACHE_UNKNOWN &&
3385 (ha->hdr[t].cluster_type &
3386 CLUSTER_RESERVE_STATE) == CLUSTER_RESERVE_STATE) {
3387 /* bus reset -> force GDT_CLUST_INFO */
3388 ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3389 }
3390 memset((char*)scp->sense_buffer,0,16);
3391 if (ha->status == (u16)S_CACHE_RESERV) {
3392 scp->result = (DID_OK << 16) | (RESERVATION_CONFLICT << 1);
3393 } else {
3394 scp->sense_buffer[0] = 0x70;
3395 scp->sense_buffer[2] = NOT_READY;
3396 scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3397 }
3398 if (!cmndinfo->internal_command) {
3399 ha->dvr.size = sizeof(ha->dvr.eu.sync);
3400 ha->dvr.eu.sync.ionode = ha->hanum;
3401 ha->dvr.eu.sync.service = service;
3402 ha->dvr.eu.sync.status = ha->status;
3403 ha->dvr.eu.sync.info = ha->info;
3404 ha->dvr.eu.sync.hostdrive = t;
3405 if (ha->status >= 0x8000)
3406 gdth_store_event(ha, ES_SYNC, 0, &ha->dvr);
3407 else
3408 gdth_store_event(ha, ES_SYNC, service, &ha->dvr);
3409 }
3410 } else {
3411 /* sense buffer filled from controller firmware (DMA) */
3412 if (ha->status != S_RAW_SCSI || ha->info >= 0x100) {
3413 scp->result = DID_BAD_TARGET << 16;
3414 } else {
3415 scp->result = (DID_OK << 16) | ha->info;
3416 }
3417 }
3418 }
3419 if (!cmndinfo->wait_for_completion)
3420 cmndinfo->wait_for_completion++;
3421 else
3422 return 1;
3423 }
3424
3425 return 0;
3426}
3427
3428static char *async_cache_tab[] = {
3429/* 0*/ "\011\000\002\002\002\004\002\006\004"
3430 "GDT HA %u, service %u, async. status %u/%lu unknown",
3431/* 1*/ "\011\000\002\002\002\004\002\006\004"
3432 "GDT HA %u, service %u, async. status %u/%lu unknown",
3433/* 2*/ "\005\000\002\006\004"
3434 "GDT HA %u, Host Drive %lu not ready",
3435/* 3*/ "\005\000\002\006\004"
3436 "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",
3437/* 4*/ "\005\000\002\006\004"
3438 "GDT HA %u, mirror update on Host Drive %lu failed",
3439/* 5*/ "\005\000\002\006\004"
3440 "GDT HA %u, Mirror Drive %lu failed",
3441/* 6*/ "\005\000\002\006\004"
3442 "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",
3443/* 7*/ "\005\000\002\006\004"
3444 "GDT HA %u, Host Drive %lu write protected",
3445/* 8*/ "\005\000\002\006\004"
3446 "GDT HA %u, media changed in Host Drive %lu",
3447/* 9*/ "\005\000\002\006\004"
3448 "GDT HA %u, Host Drive %lu is offline",
3449/*10*/ "\005\000\002\006\004"
3450 "GDT HA %u, media change of Mirror Drive %lu",
3451/*11*/ "\005\000\002\006\004"
3452 "GDT HA %u, Mirror Drive %lu is write protected",
3453/*12*/ "\005\000\002\006\004"
3454 "GDT HA %u, general error on Host Drive %lu. Please check the devices of this drive!",
3455/*13*/ "\007\000\002\006\002\010\002"
3456 "GDT HA %u, Array Drive %u: Cache Drive %u failed",
3457/*14*/ "\005\000\002\006\002"
3458 "GDT HA %u, Array Drive %u: FAIL state entered",
3459/*15*/ "\005\000\002\006\002"
3460 "GDT HA %u, Array Drive %u: error",
3461/*16*/ "\007\000\002\006\002\010\002"
3462 "GDT HA %u, Array Drive %u: failed drive replaced by Cache Drive %u",
3463/*17*/ "\005\000\002\006\002"
3464 "GDT HA %u, Array Drive %u: parity build failed",
3465/*18*/ "\005\000\002\006\002"
3466 "GDT HA %u, Array Drive %u: drive rebuild failed",
3467/*19*/ "\005\000\002\010\002"
3468 "GDT HA %u, Test of Hot Fix %u failed",
3469/*20*/ "\005\000\002\006\002"
3470 "GDT HA %u, Array Drive %u: drive build finished successfully",
3471/*21*/ "\005\000\002\006\002"
3472 "GDT HA %u, Array Drive %u: drive rebuild finished successfully",
3473/*22*/ "\007\000\002\006\002\010\002"
3474 "GDT HA %u, Array Drive %u: Hot Fix %u activated",
3475/*23*/ "\005\000\002\006\002"
3476 "GDT HA %u, Host Drive %u: processing of i/o aborted due to serious drive error",
3477/*24*/ "\005\000\002\010\002"
3478 "GDT HA %u, mirror update on Cache Drive %u completed",
3479/*25*/ "\005\000\002\010\002"
3480 "GDT HA %u, mirror update on Cache Drive %lu failed",
3481/*26*/ "\005\000\002\006\002"
3482 "GDT HA %u, Array Drive %u: drive rebuild started",
3483/*27*/ "\005\000\002\012\001"
3484 "GDT HA %u, Fault bus %u: SHELF OK detected",
3485/*28*/ "\005\000\002\012\001"
3486 "GDT HA %u, Fault bus %u: SHELF not OK detected",
3487/*29*/ "\007\000\002\012\001\013\001"
3488 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug started",
3489/*30*/ "\007\000\002\012\001\013\001"
3490 "GDT HA %u, Fault bus %u, ID %u: new disk detected",
3491/*31*/ "\007\000\002\012\001\013\001"
3492 "GDT HA %u, Fault bus %u, ID %u: old disk detected",
3493/*32*/ "\007\000\002\012\001\013\001"
3494 "GDT HA %u, Fault bus %u, ID %u: plugging an active disk is invalid",
3495/*33*/ "\007\000\002\012\001\013\001"
3496 "GDT HA %u, Fault bus %u, ID %u: invalid device detected",
3497/*34*/ "\011\000\002\012\001\013\001\006\004"
3498 "GDT HA %u, Fault bus %u, ID %u: insufficient disk capacity (%lu MB required)",
3499/*35*/ "\007\000\002\012\001\013\001"
3500 "GDT HA %u, Fault bus %u, ID %u: disk write protected",
3501/*36*/ "\007\000\002\012\001\013\001"
3502 "GDT HA %u, Fault bus %u, ID %u: disk not available",
3503/*37*/ "\007\000\002\012\001\006\004"
3504 "GDT HA %u, Fault bus %u: swap detected (%lu)",
3505/*38*/ "\007\000\002\012\001\013\001"
3506 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug finished successfully",
3507/*39*/ "\007\000\002\012\001\013\001"
3508 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted due to user Hot Plug",
3509/*40*/ "\007\000\002\012\001\013\001"
3510 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted",
3511/*41*/ "\007\000\002\012\001\013\001"
3512 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug for Hot Fix started",
3513/*42*/ "\005\000\002\006\002"
3514 "GDT HA %u, Array Drive %u: drive build started",
3515/*43*/ "\003\000\002"
3516 "GDT HA %u, DRAM parity error detected",
3517/*44*/ "\005\000\002\006\002"
3518 "GDT HA %u, Mirror Drive %u: update started",
3519/*45*/ "\007\000\002\006\002\010\002"
3520 "GDT HA %u, Mirror Drive %u: Hot Fix %u activated",
3521/*46*/ "\005\000\002\006\002"
3522 "GDT HA %u, Array Drive %u: no matching Pool Hot Fix Drive available",
3523/*47*/ "\005\000\002\006\002"
3524 "GDT HA %u, Array Drive %u: Pool Hot Fix Drive available",
3525/*48*/ "\005\000\002\006\002"
3526 "GDT HA %u, Mirror Drive %u: no matching Pool Hot Fix Drive available",
3527/*49*/ "\005\000\002\006\002"
3528 "GDT HA %u, Mirror Drive %u: Pool Hot Fix Drive available",
3529/*50*/ "\007\000\002\012\001\013\001"
3530 "GDT HA %u, SCSI bus %u, ID %u: IGNORE_WIDE_RESIDUE message received",
3531/*51*/ "\005\000\002\006\002"
3532 "GDT HA %u, Array Drive %u: expand started",
3533/*52*/ "\005\000\002\006\002"
3534 "GDT HA %u, Array Drive %u: expand finished successfully",
3535/*53*/ "\005\000\002\006\002"
3536 "GDT HA %u, Array Drive %u: expand failed",
3537/*54*/ "\003\000\002"
3538 "GDT HA %u, CPU temperature critical",
3539/*55*/ "\003\000\002"
3540 "GDT HA %u, CPU temperature OK",
3541/*56*/ "\005\000\002\006\004"
3542 "GDT HA %u, Host drive %lu created",
3543/*57*/ "\005\000\002\006\002"
3544 "GDT HA %u, Array Drive %u: expand restarted",
3545/*58*/ "\005\000\002\006\002"
3546 "GDT HA %u, Array Drive %u: expand stopped",
3547/*59*/ "\005\000\002\010\002"
3548 "GDT HA %u, Mirror Drive %u: drive build quited",
3549/*60*/ "\005\000\002\006\002"
3550 "GDT HA %u, Array Drive %u: parity build quited",
3551/*61*/ "\005\000\002\006\002"
3552 "GDT HA %u, Array Drive %u: drive rebuild quited",
3553/*62*/ "\005\000\002\006\002"
3554 "GDT HA %u, Array Drive %u: parity verify started",
3555/*63*/ "\005\000\002\006\002"
3556 "GDT HA %u, Array Drive %u: parity verify done",
3557/*64*/ "\005\000\002\006\002"
3558 "GDT HA %u, Array Drive %u: parity verify failed",
3559/*65*/ "\005\000\002\006\002"
3560 "GDT HA %u, Array Drive %u: parity error detected",
3561/*66*/ "\005\000\002\006\002"
3562 "GDT HA %u, Array Drive %u: parity verify quited",
3563/*67*/ "\005\000\002\006\002"
3564 "GDT HA %u, Host Drive %u reserved",
3565/*68*/ "\005\000\002\006\002"
3566 "GDT HA %u, Host Drive %u mounted and released",
3567/*69*/ "\005\000\002\006\002"
3568 "GDT HA %u, Host Drive %u released",
3569/*70*/ "\003\000\002"
3570 "GDT HA %u, DRAM error detected and corrected with ECC",
3571/*71*/ "\003\000\002"
3572 "GDT HA %u, Uncorrectable DRAM error detected with ECC",
3573/*72*/ "\011\000\002\012\001\013\001\014\001"
3574 "GDT HA %u, SCSI bus %u, ID %u, LUN %u: reassigning block",
3575/*73*/ "\005\000\002\006\002"
3576 "GDT HA %u, Host drive %u resetted locally",
3577/*74*/ "\005\000\002\006\002"
3578 "GDT HA %u, Host drive %u resetted remotely",
3579/*75*/ "\003\000\002"
3580 "GDT HA %u, async. status 75 unknown",
3581};
3582
3583
3584static int gdth_async_event(gdth_ha_str *ha)
3585{
3586 gdth_cmd_str *cmdp;
3587 int cmd_index;
3588
3589 cmdp= ha->pccb;
3590 TRACE2(("gdth_async_event() ha %d serv %d\n",
3591 ha->hanum, ha->service));
3592
3593 if (ha->service == SCREENSERVICE) {
3594 if (ha->status == MSG_REQUEST) {
3595 while (gdth_test_busy(ha))
3596 gdth_delay(0);
3597 cmdp->Service = SCREENSERVICE;
3598 cmdp->RequestBuffer = SCREEN_CMND;
3599 cmd_index = gdth_get_cmd_index(ha);
3600 gdth_set_sema0(ha);
3601 cmdp->OpCode = GDT_READ;
3602 cmdp->BoardNode = LOCALBOARD;
3603 cmdp->u.screen.reserved = 0;
3604 cmdp->u.screen.su.msg.msg_handle= MSG_INV_HANDLE;
3605 cmdp->u.screen.su.msg.msg_addr = ha->msg_phys;
3606 ha->cmd_offs_dpmem = 0;
3607 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3608 + sizeof(u64);
3609 ha->cmd_cnt = 0;
3610 gdth_copy_command(ha);
3611 if (ha->type == GDT_EISA)
3612 printk("[EISA slot %d] ",(u16)ha->brd_phys);
3613 else if (ha->type == GDT_ISA)
3614 printk("[DPMEM 0x%4X] ",(u16)ha->brd_phys);
3615 else
3616 printk("[PCI %d/%d] ",(u16)(ha->brd_phys>>8),
3617 (u16)((ha->brd_phys>>3)&0x1f));
3618 gdth_release_event(ha);
3619 }
3620
3621 } else {
3622 if (ha->type == GDT_PCIMPR &&
3623 (ha->fw_vers & 0xff) >= 0x1a) {
3624 ha->dvr.size = 0;
3625 ha->dvr.eu.async.ionode = ha->hanum;
3626 ha->dvr.eu.async.status = ha->status;
3627 /* severity and event_string already set! */
3628 } else {
3629 ha->dvr.size = sizeof(ha->dvr.eu.async);
3630 ha->dvr.eu.async.ionode = ha->hanum;
3631 ha->dvr.eu.async.service = ha->service;
3632 ha->dvr.eu.async.status = ha->status;
3633 ha->dvr.eu.async.info = ha->info;
3634 *(u32 *)ha->dvr.eu.async.scsi_coord = ha->info2;
3635 }
3636 gdth_store_event( ha, ES_ASYNC, ha->service, &ha->dvr );
3637 gdth_log_event( &ha->dvr, NULL );
3638
3639 /* new host drive from expand? */
3640 if (ha->service == CACHESERVICE && ha->status == 56) {
3641 TRACE2(("gdth_async_event(): new host drive %d created\n",
3642 (u16)ha->info));
3643 /* gdth_analyse_hdrive(hanum, (u16)ha->info); */
3644 }
3645 }
3646 return 1;
3647}
3648
3649static void gdth_log_event(gdth_evt_data *dvr, char *buffer)
3650{
3651 gdth_stackframe stack;
3652 char *f = NULL;
3653 int i,j;
3654
3655 TRACE2(("gdth_log_event()\n"));
3656 if (dvr->size == 0) {
3657 if (buffer == NULL) {
3658 printk("Adapter %d: %s\n",dvr->eu.async.ionode,dvr->event_string);
3659 } else {
3660 sprintf(buffer,"Adapter %d: %s\n",
3661 dvr->eu.async.ionode,dvr->event_string);
3662 }
3663 } else if (dvr->eu.async.service == CACHESERVICE &&
3664 INDEX_OK(dvr->eu.async.status, async_cache_tab)) {
3665 TRACE2(("GDT: Async. event cache service, event no.: %d\n",
3666 dvr->eu.async.status));
3667
3668 f = async_cache_tab[dvr->eu.async.status];
3669
3670 /* i: parameter to push, j: stack element to fill */
3671 for (j=0,i=1; i < f[0]; i+=2) {
3672 switch (f[i+1]) {
3673 case 4:
3674 stack.b[j++] = *(u32*)&dvr->eu.stream[(int)f[i]];
3675 break;
3676 case 2:
3677 stack.b[j++] = *(u16*)&dvr->eu.stream[(int)f[i]];
3678 break;
3679 case 1:
3680 stack.b[j++] = *(u8*)&dvr->eu.stream[(int)f[i]];
3681 break;
3682 default:
3683 break;
3684 }
3685 }
3686
3687 if (buffer == NULL) {
3688 printk(&f[(int)f[0]],stack);
3689 printk("\n");
3690 } else {
3691 sprintf(buffer,&f[(int)f[0]],stack);
3692 }
3693
3694 } else {
3695 if (buffer == NULL) {
3696 printk("GDT HA %u, Unknown async. event service %d event no. %d\n",
3697 dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
3698 } else {
3699 sprintf(buffer,"GDT HA %u, Unknown async. event service %d event no. %d",
3700 dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
3701 }
3702 }
3703}
3704
3705#ifdef GDTH_STATISTICS
3706static u8 gdth_timer_running;
3707
3708static void gdth_timeout(struct timer_list *unused)
3709{
3710 u32 i;
3711 Scsi_Cmnd *nscp;
3712 gdth_ha_str *ha;
3713 unsigned long flags;
3714
3715 if(unlikely(list_empty(&gdth_instances))) {
3716 gdth_timer_running = 0;
3717 return;
3718 }
3719
3720 ha = list_first_entry(&gdth_instances, gdth_ha_str, list);
3721 spin_lock_irqsave(&ha->smp_lock, flags);
3722
3723 for (act_stats=0,i=0; i<GDTH_MAXCMDS; ++i)
3724 if (ha->cmd_tab[i].cmnd != UNUSED_CMND)
3725 ++act_stats;
3726
3727 for (act_rq=0,nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
3728 ++act_rq;
3729
3730 TRACE2(("gdth_to(): ints %d, ios %d, act_stats %d, act_rq %d\n",
3731 act_ints, act_ios, act_stats, act_rq));
3732 act_ints = act_ios = 0;
3733
3734 gdth_timer.expires = jiffies + 30 * HZ;
3735 add_timer(&gdth_timer);
3736 spin_unlock_irqrestore(&ha->smp_lock, flags);
3737}
3738
3739static void gdth_timer_init(void)
3740{
3741 if (gdth_timer_running)
3742 return;
3743 gdth_timer_running = 1;
3744 TRACE2(("gdth_detect(): Initializing timer !\n"));
3745 gdth_timer.expires = jiffies + HZ;
3746 add_timer(&gdth_timer);
3747}
3748#else
3749static inline void gdth_timer_init(void)
3750{
3751}
3752#endif
3753
3754static void __init internal_setup(char *str,int *ints)
3755{
3756 int i, argc;
3757 char *cur_str, *argv;
3758
3759 TRACE2(("internal_setup() str %s ints[0] %d\n",
3760 str ? str:"NULL", ints ? ints[0]:0));
3761
3762 /* read irq[] from ints[] */
3763 if (ints) {
3764 argc = ints[0];
3765 if (argc > 0) {
3766 if (argc > MAXHA)
3767 argc = MAXHA;
3768 for (i = 0; i < argc; ++i)
3769 irq[i] = ints[i+1];
3770 }
3771 }
3772
3773 /* analyse string */
3774 argv = str;
3775 while (argv && (cur_str = strchr(argv, ':'))) {
3776 int val = 0, c = *++cur_str;
3777
3778 if (c == 'n' || c == 'N')
3779 val = 0;
3780 else if (c == 'y' || c == 'Y')
3781 val = 1;
3782 else
3783 val = (int)simple_strtoul(cur_str, NULL, 0);
3784
3785 if (!strncmp(argv, "disable:", 8))
3786 disable = val;
3787 else if (!strncmp(argv, "reserve_mode:", 13))
3788 reserve_mode = val;
3789 else if (!strncmp(argv, "reverse_scan:", 13))
3790 reverse_scan = val;
3791 else if (!strncmp(argv, "hdr_channel:", 12))
3792 hdr_channel = val;
3793 else if (!strncmp(argv, "max_ids:", 8))
3794 max_ids = val;
3795 else if (!strncmp(argv, "rescan:", 7))
3796 rescan = val;
3797 else if (!strncmp(argv, "shared_access:", 14))
3798 shared_access = val;
3799 else if (!strncmp(argv, "probe_eisa_isa:", 15))
3800 probe_eisa_isa = val;
3801 else if (!strncmp(argv, "reserve_list:", 13)) {
3802 reserve_list[0] = val;
3803 for (i = 1; i < MAX_RES_ARGS; i++) {
3804 cur_str = strchr(cur_str, ',');
3805 if (!cur_str)
3806 break;
3807 if (!isdigit((int)*++cur_str)) {
3808 --cur_str;
3809 break;
3810 }
3811 reserve_list[i] =
3812 (int)simple_strtoul(cur_str, NULL, 0);
3813 }
3814 if (!cur_str)
3815 break;
3816 argv = ++cur_str;
3817 continue;
3818 }
3819
3820 if ((argv = strchr(argv, ',')))
3821 ++argv;
3822 }
3823}
3824
3825int __init option_setup(char *str)
3826{
3827 int ints[MAXHA];
3828 char *cur = str;
3829 int i = 1;
3830
3831 TRACE2(("option_setup() str %s\n", str ? str:"NULL"));
3832
3833 while (cur && isdigit(*cur) && i < MAXHA) {
3834 ints[i++] = simple_strtoul(cur, NULL, 0);
3835 if ((cur = strchr(cur, ',')) != NULL) cur++;
3836 }
3837
3838 ints[0] = i - 1;
3839 internal_setup(cur, ints);
3840 return 1;
3841}
3842
3843static const char *gdth_ctr_name(gdth_ha_str *ha)
3844{
3845 TRACE2(("gdth_ctr_name()\n"));
3846
3847 if (ha->type == GDT_EISA) {
3848 switch (ha->stype) {
3849 case GDT3_ID:
3850 return("GDT3000/3020");
3851 case GDT3A_ID:
3852 return("GDT3000A/3020A/3050A");
3853 case GDT3B_ID:
3854 return("GDT3000B/3010A");
3855 }
3856 } else if (ha->type == GDT_ISA) {
3857 return("GDT2000/2020");
3858 } else if (ha->type == GDT_PCI) {
3859 switch (ha->pdev->device) {
3860 case PCI_DEVICE_ID_VORTEX_GDT60x0:
3861 return("GDT6000/6020/6050");
3862 case PCI_DEVICE_ID_VORTEX_GDT6000B:
3863 return("GDT6000B/6010");
3864 }
3865 }
3866 /* new controllers (GDT_PCINEW, GDT_PCIMPR, ..) use board_info IOCTL! */
3867
3868 return("");
3869}
3870
3871static const char *gdth_info(struct Scsi_Host *shp)
3872{
3873 gdth_ha_str *ha = shost_priv(shp);
3874
3875 TRACE2(("gdth_info()\n"));
3876 return ((const char *)ha->binfo.type_string);
3877}
3878
3879static enum blk_eh_timer_return gdth_timed_out(struct scsi_cmnd *scp)
3880{
3881 gdth_ha_str *ha = shost_priv(scp->device->host);
3882 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
3883 u8 b, t;
3884 unsigned long flags;
3885 enum blk_eh_timer_return retval = BLK_EH_NOT_HANDLED;
3886
3887 TRACE(("%s() cmd 0x%x\n", scp->cmnd[0], __func__));
3888 b = scp->device->channel;
3889 t = scp->device->id;
3890
3891 /*
3892 * We don't really honor the command timeout, but we try to
3893 * honor 6 times of the actual command timeout! So reset the
3894 * timer if this is less than 6th timeout on this command!
3895 */
3896 if (++cmndinfo->timeout_count < 6)
3897 retval = BLK_EH_RESET_TIMER;
3898
3899 /* Reset the timeout if it is locked IO */
3900 spin_lock_irqsave(&ha->smp_lock, flags);
3901 if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha, b)].lock) ||
3902 (b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock)) {
3903 TRACE2(("%s(): locked IO, reset timeout\n", __func__));
3904 retval = BLK_EH_RESET_TIMER;
3905 }
3906 spin_unlock_irqrestore(&ha->smp_lock, flags);
3907
3908 return retval;
3909}
3910
3911
3912static int gdth_eh_bus_reset(Scsi_Cmnd *scp)
3913{
3914 gdth_ha_str *ha = shost_priv(scp->device->host);
3915 int i;
3916 unsigned long flags;
3917 Scsi_Cmnd *cmnd;
3918 u8 b;
3919
3920 TRACE2(("gdth_eh_bus_reset()\n"));
3921
3922 b = scp->device->channel;
3923
3924 /* clear command tab */
3925 spin_lock_irqsave(&ha->smp_lock, flags);
3926 for (i = 0; i < GDTH_MAXCMDS; ++i) {
3927 cmnd = ha->cmd_tab[i].cmnd;
3928 if (!SPECIAL_SCP(cmnd) && cmnd->device->channel == b)
3929 ha->cmd_tab[i].cmnd = UNUSED_CMND;
3930 }
3931 spin_unlock_irqrestore(&ha->smp_lock, flags);
3932
3933 if (b == ha->virt_bus) {
3934 /* host drives */
3935 for (i = 0; i < MAX_HDRIVES; ++i) {
3936 if (ha->hdr[i].present) {
3937 spin_lock_irqsave(&ha->smp_lock, flags);
3938 gdth_polling = TRUE;
3939 while (gdth_test_busy(ha))
3940 gdth_delay(0);
3941 if (gdth_internal_cmd(ha, CACHESERVICE,
3942 GDT_CLUST_RESET, i, 0, 0))
3943 ha->hdr[i].cluster_type &= ~CLUSTER_RESERVED;
3944 gdth_polling = FALSE;
3945 spin_unlock_irqrestore(&ha->smp_lock, flags);
3946 }
3947 }
3948 } else {
3949 /* raw devices */
3950 spin_lock_irqsave(&ha->smp_lock, flags);
3951 for (i = 0; i < MAXID; ++i)
3952 ha->raw[BUS_L2P(ha,b)].io_cnt[i] = 0;
3953 gdth_polling = TRUE;
3954 while (gdth_test_busy(ha))
3955 gdth_delay(0);
3956 gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESET_BUS,
3957 BUS_L2P(ha,b), 0, 0);
3958 gdth_polling = FALSE;
3959 spin_unlock_irqrestore(&ha->smp_lock, flags);
3960 }
3961 return SUCCESS;
3962}
3963
3964static int gdth_bios_param(struct scsi_device *sdev,struct block_device *bdev,sector_t cap,int *ip)
3965{
3966 u8 b, t;
3967 gdth_ha_str *ha = shost_priv(sdev->host);
3968 struct scsi_device *sd;
3969 unsigned capacity;
3970
3971 sd = sdev;
3972 capacity = cap;
3973 b = sd->channel;
3974 t = sd->id;
3975 TRACE2(("gdth_bios_param() ha %d bus %d target %d\n", ha->hanum, b, t));
3976
3977 if (b != ha->virt_bus || ha->hdr[t].heads == 0) {
3978 /* raw device or host drive without mapping information */
3979 TRACE2(("Evaluate mapping\n"));
3980 gdth_eval_mapping(capacity,&ip[2],&ip[0],&ip[1]);
3981 } else {
3982 ip[0] = ha->hdr[t].heads;
3983 ip[1] = ha->hdr[t].secs;
3984 ip[2] = capacity / ip[0] / ip[1];
3985 }
3986
3987 TRACE2(("gdth_bios_param(): %d heads, %d secs, %d cyls\n",
3988 ip[0],ip[1],ip[2]));
3989 return 0;
3990}
3991
3992
3993static int gdth_queuecommand_lck(struct scsi_cmnd *scp,
3994 void (*done)(struct scsi_cmnd *))
3995{
3996 gdth_ha_str *ha = shost_priv(scp->device->host);
3997 struct gdth_cmndinfo *cmndinfo;
3998
3999 TRACE(("gdth_queuecommand() cmd 0x%x\n", scp->cmnd[0]));
4000
4001 cmndinfo = gdth_get_cmndinfo(ha);
4002 BUG_ON(!cmndinfo);
4003
4004 scp->scsi_done = done;
4005 cmndinfo->timeout_count = 0;
4006 cmndinfo->priority = DEFAULT_PRI;
4007
4008 return __gdth_queuecommand(ha, scp, cmndinfo);
4009}
4010
4011static DEF_SCSI_QCMD(gdth_queuecommand)
4012
4013static int __gdth_queuecommand(gdth_ha_str *ha, struct scsi_cmnd *scp,
4014 struct gdth_cmndinfo *cmndinfo)
4015{
4016 scp->host_scribble = (unsigned char *)cmndinfo;
4017 cmndinfo->wait_for_completion = 1;
4018 cmndinfo->phase = -1;
4019 cmndinfo->OpCode = -1;
4020
4021#ifdef GDTH_STATISTICS
4022 ++act_ios;
4023#endif
4024
4025 gdth_putq(ha, scp, cmndinfo->priority);
4026 gdth_next(ha);
4027 return 0;
4028}
4029
4030
4031static int gdth_open(struct inode *inode, struct file *filep)
4032{
4033 gdth_ha_str *ha;
4034
4035 mutex_lock(&gdth_mutex);
4036 list_for_each_entry(ha, &gdth_instances, list) {
4037 if (!ha->sdev)
4038 ha->sdev = scsi_get_host_dev(ha->shost);
4039 }
4040 mutex_unlock(&gdth_mutex);
4041
4042 TRACE(("gdth_open()\n"));
4043 return 0;
4044}
4045
4046static int gdth_close(struct inode *inode, struct file *filep)
4047{
4048 TRACE(("gdth_close()\n"));
4049 return 0;
4050}
4051
4052static int ioc_event(void __user *arg)
4053{
4054 gdth_ioctl_event evt;
4055 gdth_ha_str *ha;
4056 unsigned long flags;
4057
4058 if (copy_from_user(&evt, arg, sizeof(gdth_ioctl_event)))
4059 return -EFAULT;
4060 ha = gdth_find_ha(evt.ionode);
4061 if (!ha)
4062 return -EFAULT;
4063
4064 if (evt.erase == 0xff) {
4065 if (evt.event.event_source == ES_TEST)
4066 evt.event.event_data.size=sizeof(evt.event.event_data.eu.test);
4067 else if (evt.event.event_source == ES_DRIVER)
4068 evt.event.event_data.size=sizeof(evt.event.event_data.eu.driver);
4069 else if (evt.event.event_source == ES_SYNC)
4070 evt.event.event_data.size=sizeof(evt.event.event_data.eu.sync);
4071 else
4072 evt.event.event_data.size=sizeof(evt.event.event_data.eu.async);
4073 spin_lock_irqsave(&ha->smp_lock, flags);
4074 gdth_store_event(ha, evt.event.event_source, evt.event.event_idx,
4075 &evt.event.event_data);
4076 spin_unlock_irqrestore(&ha->smp_lock, flags);
4077 } else if (evt.erase == 0xfe) {
4078 gdth_clear_events();
4079 } else if (evt.erase == 0) {
4080 evt.handle = gdth_read_event(ha, evt.handle, &evt.event);
4081 } else {
4082 gdth_readapp_event(ha, evt.erase, &evt.event);
4083 }
4084 if (copy_to_user(arg, &evt, sizeof(gdth_ioctl_event)))
4085 return -EFAULT;
4086 return 0;
4087}
4088
4089static int ioc_lockdrv(void __user *arg)
4090{
4091 gdth_ioctl_lockdrv ldrv;
4092 u8 i, j;
4093 unsigned long flags;
4094 gdth_ha_str *ha;
4095
4096 if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv)))
4097 return -EFAULT;
4098 ha = gdth_find_ha(ldrv.ionode);
4099 if (!ha)
4100 return -EFAULT;
4101
4102 for (i = 0; i < ldrv.drive_cnt && i < MAX_HDRIVES; ++i) {
4103 j = ldrv.drives[i];
4104 if (j >= MAX_HDRIVES || !ha->hdr[j].present)
4105 continue;
4106 if (ldrv.lock) {
4107 spin_lock_irqsave(&ha->smp_lock, flags);
4108 ha->hdr[j].lock = 1;
4109 spin_unlock_irqrestore(&ha->smp_lock, flags);
4110 gdth_wait_completion(ha, ha->bus_cnt, j);
4111 } else {
4112 spin_lock_irqsave(&ha->smp_lock, flags);
4113 ha->hdr[j].lock = 0;
4114 spin_unlock_irqrestore(&ha->smp_lock, flags);
4115 gdth_next(ha);
4116 }
4117 }
4118 return 0;
4119}
4120
4121static int ioc_resetdrv(void __user *arg, char *cmnd)
4122{
4123 gdth_ioctl_reset res;
4124 gdth_cmd_str cmd;
4125 gdth_ha_str *ha;
4126 int rval;
4127
4128 if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) ||
4129 res.number >= MAX_HDRIVES)
4130 return -EFAULT;
4131 ha = gdth_find_ha(res.ionode);
4132 if (!ha)
4133 return -EFAULT;
4134
4135 if (!ha->hdr[res.number].present)
4136 return 0;
4137 memset(&cmd, 0, sizeof(gdth_cmd_str));
4138 cmd.Service = CACHESERVICE;
4139 cmd.OpCode = GDT_CLUST_RESET;
4140 if (ha->cache_feat & GDT_64BIT)
4141 cmd.u.cache64.DeviceNo = res.number;
4142 else
4143 cmd.u.cache.DeviceNo = res.number;
4144
4145 rval = __gdth_execute(ha->sdev, &cmd, cmnd, 30, NULL);
4146 if (rval < 0)
4147 return rval;
4148 res.status = rval;
4149
4150 if (copy_to_user(arg, &res, sizeof(gdth_ioctl_reset)))
4151 return -EFAULT;
4152 return 0;
4153}
4154
4155static int ioc_general(void __user *arg, char *cmnd)
4156{
4157 gdth_ioctl_general gen;
4158 char *buf = NULL;
4159 u64 paddr;
4160 gdth_ha_str *ha;
4161 int rval;
4162
4163 if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general)))
4164 return -EFAULT;
4165 ha = gdth_find_ha(gen.ionode);
4166 if (!ha)
4167 return -EFAULT;
4168
4169 if (gen.data_len > INT_MAX)
4170 return -EINVAL;
4171 if (gen.sense_len > INT_MAX)
4172 return -EINVAL;
4173 if (gen.data_len + gen.sense_len > INT_MAX)
4174 return -EINVAL;
4175
4176 if (gen.data_len + gen.sense_len != 0) {
4177 if (!(buf = gdth_ioctl_alloc(ha, gen.data_len + gen.sense_len,
4178 FALSE, &paddr)))
4179 return -EFAULT;
4180 if (copy_from_user(buf, arg + sizeof(gdth_ioctl_general),
4181 gen.data_len + gen.sense_len)) {
4182 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
4183 return -EFAULT;
4184 }
4185
4186 if (gen.command.OpCode == GDT_IOCTL) {
4187 gen.command.u.ioctl.p_param = paddr;
4188 } else if (gen.command.Service == CACHESERVICE) {
4189 if (ha->cache_feat & GDT_64BIT) {
4190 /* copy elements from 32-bit IOCTL structure */
4191 gen.command.u.cache64.BlockCnt = gen.command.u.cache.BlockCnt;
4192 gen.command.u.cache64.BlockNo = gen.command.u.cache.BlockNo;
4193 gen.command.u.cache64.DeviceNo = gen.command.u.cache.DeviceNo;
4194 /* addresses */
4195 if (ha->cache_feat & SCATTER_GATHER) {
4196 gen.command.u.cache64.DestAddr = (u64)-1;
4197 gen.command.u.cache64.sg_canz = 1;
4198 gen.command.u.cache64.sg_lst[0].sg_ptr = paddr;
4199 gen.command.u.cache64.sg_lst[0].sg_len = gen.data_len;
4200 gen.command.u.cache64.sg_lst[1].sg_len = 0;
4201 } else {
4202 gen.command.u.cache64.DestAddr = paddr;
4203 gen.command.u.cache64.sg_canz = 0;
4204 }
4205 } else {
4206 if (ha->cache_feat & SCATTER_GATHER) {
4207 gen.command.u.cache.DestAddr = 0xffffffff;
4208 gen.command.u.cache.sg_canz = 1;
4209 gen.command.u.cache.sg_lst[0].sg_ptr = (u32)paddr;
4210 gen.command.u.cache.sg_lst[0].sg_len = gen.data_len;
4211 gen.command.u.cache.sg_lst[1].sg_len = 0;
4212 } else {
4213 gen.command.u.cache.DestAddr = paddr;
4214 gen.command.u.cache.sg_canz = 0;
4215 }
4216 }
4217 } else if (gen.command.Service == SCSIRAWSERVICE) {
4218 if (ha->raw_feat & GDT_64BIT) {
4219 /* copy elements from 32-bit IOCTL structure */
4220 char cmd[16];
4221 gen.command.u.raw64.sense_len = gen.command.u.raw.sense_len;
4222 gen.command.u.raw64.bus = gen.command.u.raw.bus;
4223 gen.command.u.raw64.lun = gen.command.u.raw.lun;
4224 gen.command.u.raw64.target = gen.command.u.raw.target;
4225 memcpy(cmd, gen.command.u.raw.cmd, 16);
4226 memcpy(gen.command.u.raw64.cmd, cmd, 16);
4227 gen.command.u.raw64.clen = gen.command.u.raw.clen;
4228 gen.command.u.raw64.sdlen = gen.command.u.raw.sdlen;
4229 gen.command.u.raw64.direction = gen.command.u.raw.direction;
4230 /* addresses */
4231 if (ha->raw_feat & SCATTER_GATHER) {
4232 gen.command.u.raw64.sdata = (u64)-1;
4233 gen.command.u.raw64.sg_ranz = 1;
4234 gen.command.u.raw64.sg_lst[0].sg_ptr = paddr;
4235 gen.command.u.raw64.sg_lst[0].sg_len = gen.data_len;
4236 gen.command.u.raw64.sg_lst[1].sg_len = 0;
4237 } else {
4238 gen.command.u.raw64.sdata = paddr;
4239 gen.command.u.raw64.sg_ranz = 0;
4240 }
4241 gen.command.u.raw64.sense_data = paddr + gen.data_len;
4242 } else {
4243 if (ha->raw_feat & SCATTER_GATHER) {
4244 gen.command.u.raw.sdata = 0xffffffff;
4245 gen.command.u.raw.sg_ranz = 1;
4246 gen.command.u.raw.sg_lst[0].sg_ptr = (u32)paddr;
4247 gen.command.u.raw.sg_lst[0].sg_len = gen.data_len;
4248 gen.command.u.raw.sg_lst[1].sg_len = 0;
4249 } else {
4250 gen.command.u.raw.sdata = paddr;
4251 gen.command.u.raw.sg_ranz = 0;
4252 }
4253 gen.command.u.raw.sense_data = (u32)paddr + gen.data_len;
4254 }
4255 } else {
4256 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
4257 return -EFAULT;
4258 }
4259 }
4260
4261 rval = __gdth_execute(ha->sdev, &gen.command, cmnd, gen.timeout, &gen.info);
4262 if (rval < 0) {
4263 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
4264 return rval;
4265 }
4266 gen.status = rval;
4267
4268 if (copy_to_user(arg + sizeof(gdth_ioctl_general), buf,
4269 gen.data_len + gen.sense_len)) {
4270 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
4271 return -EFAULT;
4272 }
4273 if (copy_to_user(arg, &gen,
4274 sizeof(gdth_ioctl_general) - sizeof(gdth_cmd_str))) {
4275 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
4276 return -EFAULT;
4277 }
4278 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
4279 return 0;
4280}
4281
4282static int ioc_hdrlist(void __user *arg, char *cmnd)
4283{
4284 gdth_ioctl_rescan *rsc;
4285 gdth_cmd_str *cmd;
4286 gdth_ha_str *ha;
4287 u8 i;
4288 int rc = -ENOMEM;
4289 u32 cluster_type = 0;
4290
4291 rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
4292 cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
4293 if (!rsc || !cmd)
4294 goto free_fail;
4295
4296 if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
4297 (NULL == (ha = gdth_find_ha(rsc->ionode)))) {
4298 rc = -EFAULT;
4299 goto free_fail;
4300 }
4301 memset(cmd, 0, sizeof(gdth_cmd_str));
4302
4303 for (i = 0; i < MAX_HDRIVES; ++i) {
4304 if (!ha->hdr[i].present) {
4305 rsc->hdr_list[i].bus = 0xff;
4306 continue;
4307 }
4308 rsc->hdr_list[i].bus = ha->virt_bus;
4309 rsc->hdr_list[i].target = i;
4310 rsc->hdr_list[i].lun = 0;
4311 rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
4312 if (ha->hdr[i].cluster_type & CLUSTER_DRIVE) {
4313 cmd->Service = CACHESERVICE;
4314 cmd->OpCode = GDT_CLUST_INFO;
4315 if (ha->cache_feat & GDT_64BIT)
4316 cmd->u.cache64.DeviceNo = i;
4317 else
4318 cmd->u.cache.DeviceNo = i;
4319 if (__gdth_execute(ha->sdev, cmd, cmnd, 30, &cluster_type) == S_OK)
4320 rsc->hdr_list[i].cluster_type = cluster_type;
4321 }
4322 }
4323
4324 if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
4325 rc = -EFAULT;
4326 else
4327 rc = 0;
4328
4329free_fail:
4330 kfree(rsc);
4331 kfree(cmd);
4332 return rc;
4333}
4334
4335static int ioc_rescan(void __user *arg, char *cmnd)
4336{
4337 gdth_ioctl_rescan *rsc;
4338 gdth_cmd_str *cmd;
4339 u16 i, status, hdr_cnt;
4340 u32 info;
4341 int cyls, hds, secs;
4342 int rc = -ENOMEM;
4343 unsigned long flags;
4344 gdth_ha_str *ha;
4345
4346 rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
4347 cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
4348 if (!cmd || !rsc)
4349 goto free_fail;
4350
4351 if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
4352 (NULL == (ha = gdth_find_ha(rsc->ionode)))) {
4353 rc = -EFAULT;
4354 goto free_fail;
4355 }
4356 memset(cmd, 0, sizeof(gdth_cmd_str));
4357
4358 if (rsc->flag == 0) {
4359 /* old method: re-init. cache service */
4360 cmd->Service = CACHESERVICE;
4361 if (ha->cache_feat & GDT_64BIT) {
4362 cmd->OpCode = GDT_X_INIT_HOST;
4363 cmd->u.cache64.DeviceNo = LINUX_OS;
4364 } else {
4365 cmd->OpCode = GDT_INIT;
4366 cmd->u.cache.DeviceNo = LINUX_OS;
4367 }
4368
4369 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4370 i = 0;
4371 hdr_cnt = (status == S_OK ? (u16)info : 0);
4372 } else {
4373 i = rsc->hdr_no;
4374 hdr_cnt = i + 1;
4375 }
4376
4377 for (; i < hdr_cnt && i < MAX_HDRIVES; ++i) {
4378 cmd->Service = CACHESERVICE;
4379 cmd->OpCode = GDT_INFO;
4380 if (ha->cache_feat & GDT_64BIT)
4381 cmd->u.cache64.DeviceNo = i;
4382 else
4383 cmd->u.cache.DeviceNo = i;
4384
4385 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4386
4387 spin_lock_irqsave(&ha->smp_lock, flags);
4388 rsc->hdr_list[i].bus = ha->virt_bus;
4389 rsc->hdr_list[i].target = i;
4390 rsc->hdr_list[i].lun = 0;
4391 if (status != S_OK) {
4392 ha->hdr[i].present = FALSE;
4393 } else {
4394 ha->hdr[i].present = TRUE;
4395 ha->hdr[i].size = info;
4396 /* evaluate mapping */
4397 ha->hdr[i].size &= ~SECS32;
4398 gdth_eval_mapping(ha->hdr[i].size,&cyls,&hds,&secs);
4399 ha->hdr[i].heads = hds;
4400 ha->hdr[i].secs = secs;
4401 /* round size */
4402 ha->hdr[i].size = cyls * hds * secs;
4403 }
4404 spin_unlock_irqrestore(&ha->smp_lock, flags);
4405 if (status != S_OK)
4406 continue;
4407
4408 /* extended info, if GDT_64BIT, for drives > 2 TB */
4409 /* but we need ha->info2, not yet stored in scp->SCp */
4410
4411 /* devtype, cluster info, R/W attribs */
4412 cmd->Service = CACHESERVICE;
4413 cmd->OpCode = GDT_DEVTYPE;
4414 if (ha->cache_feat & GDT_64BIT)
4415 cmd->u.cache64.DeviceNo = i;
4416 else
4417 cmd->u.cache.DeviceNo = i;
4418
4419 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4420
4421 spin_lock_irqsave(&ha->smp_lock, flags);
4422 ha->hdr[i].devtype = (status == S_OK ? (u16)info : 0);
4423 spin_unlock_irqrestore(&ha->smp_lock, flags);
4424
4425 cmd->Service = CACHESERVICE;
4426 cmd->OpCode = GDT_CLUST_INFO;
4427 if (ha->cache_feat & GDT_64BIT)
4428 cmd->u.cache64.DeviceNo = i;
4429 else
4430 cmd->u.cache.DeviceNo = i;
4431
4432 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4433
4434 spin_lock_irqsave(&ha->smp_lock, flags);
4435 ha->hdr[i].cluster_type =
4436 ((status == S_OK && !shared_access) ? (u16)info : 0);
4437 spin_unlock_irqrestore(&ha->smp_lock, flags);
4438 rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
4439
4440 cmd->Service = CACHESERVICE;
4441 cmd->OpCode = GDT_RW_ATTRIBS;
4442 if (ha->cache_feat & GDT_64BIT)
4443 cmd->u.cache64.DeviceNo = i;
4444 else
4445 cmd->u.cache.DeviceNo = i;
4446
4447 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4448
4449 spin_lock_irqsave(&ha->smp_lock, flags);
4450 ha->hdr[i].rw_attribs = (status == S_OK ? (u16)info : 0);
4451 spin_unlock_irqrestore(&ha->smp_lock, flags);
4452 }
4453
4454 if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
4455 rc = -EFAULT;
4456 else
4457 rc = 0;
4458
4459free_fail:
4460 kfree(rsc);
4461 kfree(cmd);
4462 return rc;
4463}
4464
4465static int gdth_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
4466{
4467 gdth_ha_str *ha;
4468 Scsi_Cmnd *scp;
4469 unsigned long flags;
4470 char cmnd[MAX_COMMAND_SIZE];
4471 void __user *argp = (void __user *)arg;
4472
4473 memset(cmnd, 0xff, 12);
4474
4475 TRACE(("gdth_ioctl() cmd 0x%x\n", cmd));
4476
4477 switch (cmd) {
4478 case GDTIOCTL_CTRCNT:
4479 {
4480 int cnt = gdth_ctr_count;
4481 if (put_user(cnt, (int __user *)argp))
4482 return -EFAULT;
4483 break;
4484 }
4485
4486 case GDTIOCTL_DRVERS:
4487 {
4488 int ver = (GDTH_VERSION<<8) | GDTH_SUBVERSION;
4489 if (put_user(ver, (int __user *)argp))
4490 return -EFAULT;
4491 break;
4492 }
4493
4494 case GDTIOCTL_OSVERS:
4495 {
4496 gdth_ioctl_osvers osv;
4497
4498 osv.version = (u8)(LINUX_VERSION_CODE >> 16);
4499 osv.subversion = (u8)(LINUX_VERSION_CODE >> 8);
4500 osv.revision = (u16)(LINUX_VERSION_CODE & 0xff);
4501 if (copy_to_user(argp, &osv, sizeof(gdth_ioctl_osvers)))
4502 return -EFAULT;
4503 break;
4504 }
4505
4506 case GDTIOCTL_CTRTYPE:
4507 {
4508 gdth_ioctl_ctrtype ctrt;
4509
4510 if (copy_from_user(&ctrt, argp, sizeof(gdth_ioctl_ctrtype)) ||
4511 (NULL == (ha = gdth_find_ha(ctrt.ionode))))
4512 return -EFAULT;
4513
4514 if (ha->type == GDT_ISA || ha->type == GDT_EISA) {
4515 ctrt.type = (u8)((ha->stype>>20) - 0x10);
4516 } else {
4517 if (ha->type != GDT_PCIMPR) {
4518 ctrt.type = (u8)((ha->stype<<4) + 6);
4519 } else {
4520 ctrt.type =
4521 (ha->oem_id == OEM_ID_INTEL ? 0xfd : 0xfe);
4522 if (ha->stype >= 0x300)
4523 ctrt.ext_type = 0x6000 | ha->pdev->subsystem_device;
4524 else
4525 ctrt.ext_type = 0x6000 | ha->stype;
4526 }
4527 ctrt.device_id = ha->pdev->device;
4528 ctrt.sub_device_id = ha->pdev->subsystem_device;
4529 }
4530 ctrt.info = ha->brd_phys;
4531 ctrt.oem_id = ha->oem_id;
4532 if (copy_to_user(argp, &ctrt, sizeof(gdth_ioctl_ctrtype)))
4533 return -EFAULT;
4534 break;
4535 }
4536
4537 case GDTIOCTL_GENERAL:
4538 return ioc_general(argp, cmnd);
4539
4540 case GDTIOCTL_EVENT:
4541 return ioc_event(argp);
4542
4543 case GDTIOCTL_LOCKDRV:
4544 return ioc_lockdrv(argp);
4545
4546 case GDTIOCTL_LOCKCHN:
4547 {
4548 gdth_ioctl_lockchn lchn;
4549 u8 i, j;
4550
4551 if (copy_from_user(&lchn, argp, sizeof(gdth_ioctl_lockchn)) ||
4552 (NULL == (ha = gdth_find_ha(lchn.ionode))))
4553 return -EFAULT;
4554
4555 i = lchn.channel;
4556 if (i < ha->bus_cnt) {
4557 if (lchn.lock) {
4558 spin_lock_irqsave(&ha->smp_lock, flags);
4559 ha->raw[i].lock = 1;
4560 spin_unlock_irqrestore(&ha->smp_lock, flags);
4561 for (j = 0; j < ha->tid_cnt; ++j)
4562 gdth_wait_completion(ha, i, j);
4563 } else {
4564 spin_lock_irqsave(&ha->smp_lock, flags);
4565 ha->raw[i].lock = 0;
4566 spin_unlock_irqrestore(&ha->smp_lock, flags);
4567 for (j = 0; j < ha->tid_cnt; ++j)
4568 gdth_next(ha);
4569 }
4570 }
4571 break;
4572 }
4573
4574 case GDTIOCTL_RESCAN:
4575 return ioc_rescan(argp, cmnd);
4576
4577 case GDTIOCTL_HDRLIST:
4578 return ioc_hdrlist(argp, cmnd);
4579
4580 case GDTIOCTL_RESET_BUS:
4581 {
4582 gdth_ioctl_reset res;
4583 int rval;
4584
4585 if (copy_from_user(&res, argp, sizeof(gdth_ioctl_reset)) ||
4586 (NULL == (ha = gdth_find_ha(res.ionode))))
4587 return -EFAULT;
4588
4589 scp = kzalloc(sizeof(*scp), GFP_KERNEL);
4590 if (!scp)
4591 return -ENOMEM;
4592 scp->device = ha->sdev;
4593 scp->cmd_len = 12;
4594 scp->device->channel = res.number;
4595 rval = gdth_eh_bus_reset(scp);
4596 res.status = (rval == SUCCESS ? S_OK : S_GENERR);
4597 kfree(scp);
4598
4599 if (copy_to_user(argp, &res, sizeof(gdth_ioctl_reset)))
4600 return -EFAULT;
4601 break;
4602 }
4603
4604 case GDTIOCTL_RESET_DRV:
4605 return ioc_resetdrv(argp, cmnd);
4606
4607 default:
4608 break;
4609 }
4610 return 0;
4611}
4612
4613static long gdth_unlocked_ioctl(struct file *file, unsigned int cmd,
4614 unsigned long arg)
4615{
4616 int ret;
4617
4618 mutex_lock(&gdth_mutex);
4619 ret = gdth_ioctl(file, cmd, arg);
4620 mutex_unlock(&gdth_mutex);
4621
4622 return ret;
4623}
4624
4625/* flush routine */
4626static void gdth_flush(gdth_ha_str *ha)
4627{
4628 int i;
4629 gdth_cmd_str gdtcmd;
4630 char cmnd[MAX_COMMAND_SIZE];
4631 memset(cmnd, 0xff, MAX_COMMAND_SIZE);
4632
4633 TRACE2(("gdth_flush() hanum %d\n", ha->hanum));
4634
4635 for (i = 0; i < MAX_HDRIVES; ++i) {
4636 if (ha->hdr[i].present) {
4637 gdtcmd.BoardNode = LOCALBOARD;
4638 gdtcmd.Service = CACHESERVICE;
4639 gdtcmd.OpCode = GDT_FLUSH;
4640 if (ha->cache_feat & GDT_64BIT) {
4641 gdtcmd.u.cache64.DeviceNo = i;
4642 gdtcmd.u.cache64.BlockNo = 1;
4643 gdtcmd.u.cache64.sg_canz = 0;
4644 } else {
4645 gdtcmd.u.cache.DeviceNo = i;
4646 gdtcmd.u.cache.BlockNo = 1;
4647 gdtcmd.u.cache.sg_canz = 0;
4648 }
4649 TRACE2(("gdth_flush(): flush ha %d drive %d\n", ha->hanum, i));
4650
4651 gdth_execute(ha->shost, &gdtcmd, cmnd, 30, NULL);
4652 }
4653 }
4654}
4655
4656/* configure lun */
4657static int gdth_slave_configure(struct scsi_device *sdev)
4658{
4659 sdev->skip_ms_page_3f = 1;
4660 sdev->skip_ms_page_8 = 1;
4661 return 0;
4662}
4663
4664static struct scsi_host_template gdth_template = {
4665 .name = "GDT SCSI Disk Array Controller",
4666 .info = gdth_info,
4667 .queuecommand = gdth_queuecommand,
4668 .eh_bus_reset_handler = gdth_eh_bus_reset,
4669 .slave_configure = gdth_slave_configure,
4670 .bios_param = gdth_bios_param,
4671 .show_info = gdth_show_info,
4672 .write_info = gdth_set_info,
4673 .eh_timed_out = gdth_timed_out,
4674 .proc_name = "gdth",
4675 .can_queue = GDTH_MAXCMDS,
4676 .this_id = -1,
4677 .sg_tablesize = GDTH_MAXSG,
4678 .cmd_per_lun = GDTH_MAXC_P_L,
4679 .unchecked_isa_dma = 1,
4680 .use_clustering = ENABLE_CLUSTERING,
4681 .no_write_same = 1,
4682};
4683
4684#ifdef CONFIG_ISA
4685static int __init gdth_isa_probe_one(u32 isa_bios)
4686{
4687 struct Scsi_Host *shp;
4688 gdth_ha_str *ha;
4689 dma_addr_t scratch_dma_handle = 0;
4690 int error, i;
4691
4692 if (!gdth_search_isa(isa_bios))
4693 return -ENXIO;
4694
4695 shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
4696 if (!shp)
4697 return -ENOMEM;
4698 ha = shost_priv(shp);
4699
4700 error = -ENODEV;
4701 if (!gdth_init_isa(isa_bios,ha))
4702 goto out_host_put;
4703
4704 /* controller found and initialized */
4705 printk("Configuring GDT-ISA HA at BIOS 0x%05X IRQ %u DRQ %u\n",
4706 isa_bios, ha->irq, ha->drq);
4707
4708 error = request_irq(ha->irq, gdth_interrupt, 0, "gdth", ha);
4709 if (error) {
4710 printk("GDT-ISA: Unable to allocate IRQ\n");
4711 goto out_host_put;
4712 }
4713
4714 error = request_dma(ha->drq, "gdth");
4715 if (error) {
4716 printk("GDT-ISA: Unable to allocate DMA channel\n");
4717 goto out_free_irq;
4718 }
4719
4720 set_dma_mode(ha->drq,DMA_MODE_CASCADE);
4721 enable_dma(ha->drq);
4722 shp->unchecked_isa_dma = 1;
4723 shp->irq = ha->irq;
4724 shp->dma_channel = ha->drq;
4725
4726 ha->hanum = gdth_ctr_count++;
4727 ha->shost = shp;
4728
4729 ha->pccb = &ha->cmdext;
4730 ha->ccb_phys = 0L;
4731 ha->pdev = NULL;
4732
4733 error = -ENOMEM;
4734
4735 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4736 &scratch_dma_handle);
4737 if (!ha->pscratch)
4738 goto out_dec_counters;
4739 ha->scratch_phys = scratch_dma_handle;
4740
4741 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4742 &scratch_dma_handle);
4743 if (!ha->pmsg)
4744 goto out_free_pscratch;
4745 ha->msg_phys = scratch_dma_handle;
4746
4747#ifdef INT_COAL
4748 ha->coal_stat = pci_alloc_consistent(ha->pdev,
4749 sizeof(gdth_coal_status) * MAXOFFSETS,
4750 &scratch_dma_handle);
4751 if (!ha->coal_stat)
4752 goto out_free_pmsg;
4753 ha->coal_stat_phys = scratch_dma_handle;
4754#endif
4755
4756 ha->scratch_busy = FALSE;
4757 ha->req_first = NULL;
4758 ha->tid_cnt = MAX_HDRIVES;
4759 if (max_ids > 0 && max_ids < ha->tid_cnt)
4760 ha->tid_cnt = max_ids;
4761 for (i = 0; i < GDTH_MAXCMDS; ++i)
4762 ha->cmd_tab[i].cmnd = UNUSED_CMND;
4763 ha->scan_mode = rescan ? 0x10 : 0;
4764
4765 error = -ENODEV;
4766 if (!gdth_search_drives(ha)) {
4767 printk("GDT-ISA: Error during device scan\n");
4768 goto out_free_coal_stat;
4769 }
4770
4771 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4772 hdr_channel = ha->bus_cnt;
4773 ha->virt_bus = hdr_channel;
4774
4775 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4776 shp->max_cmd_len = 16;
4777
4778 shp->max_id = ha->tid_cnt;
4779 shp->max_lun = MAXLUN;
4780 shp->max_channel = ha->bus_cnt;
4781
4782 spin_lock_init(&ha->smp_lock);
4783 gdth_enable_int(ha);
4784
4785 error = scsi_add_host(shp, NULL);
4786 if (error)
4787 goto out_free_coal_stat;
4788 list_add_tail(&ha->list, &gdth_instances);
4789 gdth_timer_init();
4790
4791 scsi_scan_host(shp);
4792
4793 return 0;
4794
4795 out_free_coal_stat:
4796#ifdef INT_COAL
4797 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
4798 ha->coal_stat, ha->coal_stat_phys);
4799 out_free_pmsg:
4800#endif
4801 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4802 ha->pmsg, ha->msg_phys);
4803 out_free_pscratch:
4804 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4805 ha->pscratch, ha->scratch_phys);
4806 out_dec_counters:
4807 gdth_ctr_count--;
4808 out_free_irq:
4809 free_irq(ha->irq, ha);
4810 out_host_put:
4811 scsi_host_put(shp);
4812 return error;
4813}
4814#endif /* CONFIG_ISA */
4815
4816#ifdef CONFIG_EISA
4817static int __init gdth_eisa_probe_one(u16 eisa_slot)
4818{
4819 struct Scsi_Host *shp;
4820 gdth_ha_str *ha;
4821 dma_addr_t scratch_dma_handle = 0;
4822 int error, i;
4823
4824 if (!gdth_search_eisa(eisa_slot))
4825 return -ENXIO;
4826
4827 shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
4828 if (!shp)
4829 return -ENOMEM;
4830 ha = shost_priv(shp);
4831
4832 error = -ENODEV;
4833 if (!gdth_init_eisa(eisa_slot,ha))
4834 goto out_host_put;
4835
4836 /* controller found and initialized */
4837 printk("Configuring GDT-EISA HA at Slot %d IRQ %u\n",
4838 eisa_slot >> 12, ha->irq);
4839
4840 error = request_irq(ha->irq, gdth_interrupt, 0, "gdth", ha);
4841 if (error) {
4842 printk("GDT-EISA: Unable to allocate IRQ\n");
4843 goto out_host_put;
4844 }
4845
4846 shp->unchecked_isa_dma = 0;
4847 shp->irq = ha->irq;
4848 shp->dma_channel = 0xff;
4849
4850 ha->hanum = gdth_ctr_count++;
4851 ha->shost = shp;
4852
4853 TRACE2(("EISA detect Bus 0: hanum %d\n", ha->hanum));
4854
4855 ha->pccb = &ha->cmdext;
4856 ha->ccb_phys = 0L;
4857
4858 error = -ENOMEM;
4859
4860 ha->pdev = NULL;
4861 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4862 &scratch_dma_handle);
4863 if (!ha->pscratch)
4864 goto out_free_irq;
4865 ha->scratch_phys = scratch_dma_handle;
4866
4867 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4868 &scratch_dma_handle);
4869 if (!ha->pmsg)
4870 goto out_free_pscratch;
4871 ha->msg_phys = scratch_dma_handle;
4872
4873#ifdef INT_COAL
4874 ha->coal_stat = pci_alloc_consistent(ha->pdev,
4875 sizeof(gdth_coal_status) * MAXOFFSETS,
4876 &scratch_dma_handle);
4877 if (!ha->coal_stat)
4878 goto out_free_pmsg;
4879 ha->coal_stat_phys = scratch_dma_handle;
4880#endif
4881
4882 ha->ccb_phys = pci_map_single(ha->pdev,ha->pccb,
4883 sizeof(gdth_cmd_str), PCI_DMA_BIDIRECTIONAL);
4884 if (!ha->ccb_phys)
4885 goto out_free_coal_stat;
4886
4887 ha->scratch_busy = FALSE;
4888 ha->req_first = NULL;
4889 ha->tid_cnt = MAX_HDRIVES;
4890 if (max_ids > 0 && max_ids < ha->tid_cnt)
4891 ha->tid_cnt = max_ids;
4892 for (i = 0; i < GDTH_MAXCMDS; ++i)
4893 ha->cmd_tab[i].cmnd = UNUSED_CMND;
4894 ha->scan_mode = rescan ? 0x10 : 0;
4895
4896 if (!gdth_search_drives(ha)) {
4897 printk("GDT-EISA: Error during device scan\n");
4898 error = -ENODEV;
4899 goto out_free_ccb_phys;
4900 }
4901
4902 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4903 hdr_channel = ha->bus_cnt;
4904 ha->virt_bus = hdr_channel;
4905
4906 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4907 shp->max_cmd_len = 16;
4908
4909 shp->max_id = ha->tid_cnt;
4910 shp->max_lun = MAXLUN;
4911 shp->max_channel = ha->bus_cnt;
4912
4913 spin_lock_init(&ha->smp_lock);
4914 gdth_enable_int(ha);
4915
4916 error = scsi_add_host(shp, NULL);
4917 if (error)
4918 goto out_free_ccb_phys;
4919 list_add_tail(&ha->list, &gdth_instances);
4920 gdth_timer_init();
4921
4922 scsi_scan_host(shp);
4923
4924 return 0;
4925
4926 out_free_ccb_phys:
4927 pci_unmap_single(ha->pdev,ha->ccb_phys, sizeof(gdth_cmd_str),
4928 PCI_DMA_BIDIRECTIONAL);
4929 out_free_coal_stat:
4930#ifdef INT_COAL
4931 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
4932 ha->coal_stat, ha->coal_stat_phys);
4933 out_free_pmsg:
4934#endif
4935 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4936 ha->pmsg, ha->msg_phys);
4937 out_free_pscratch:
4938 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4939 ha->pscratch, ha->scratch_phys);
4940 out_free_irq:
4941 free_irq(ha->irq, ha);
4942 gdth_ctr_count--;
4943 out_host_put:
4944 scsi_host_put(shp);
4945 return error;
4946}
4947#endif /* CONFIG_EISA */
4948
4949#ifdef CONFIG_PCI
4950static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out)
4951{
4952 struct Scsi_Host *shp;
4953 gdth_ha_str *ha;
4954 dma_addr_t scratch_dma_handle = 0;
4955 int error, i;
4956 struct pci_dev *pdev = pcistr->pdev;
4957
4958 *ha_out = NULL;
4959
4960 shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
4961 if (!shp)
4962 return -ENOMEM;
4963 ha = shost_priv(shp);
4964
4965 error = -ENODEV;
4966 if (!gdth_init_pci(pdev, pcistr, ha))
4967 goto out_host_put;
4968
4969 /* controller found and initialized */
4970 printk("Configuring GDT-PCI HA at %d/%d IRQ %u\n",
4971 pdev->bus->number,
4972 PCI_SLOT(pdev->devfn),
4973 ha->irq);
4974
4975 error = request_irq(ha->irq, gdth_interrupt,
4976 IRQF_SHARED, "gdth", ha);
4977 if (error) {
4978 printk("GDT-PCI: Unable to allocate IRQ\n");
4979 goto out_host_put;
4980 }
4981
4982 shp->unchecked_isa_dma = 0;
4983 shp->irq = ha->irq;
4984 shp->dma_channel = 0xff;
4985
4986 ha->hanum = gdth_ctr_count++;
4987 ha->shost = shp;
4988
4989 ha->pccb = &ha->cmdext;
4990 ha->ccb_phys = 0L;
4991
4992 error = -ENOMEM;
4993
4994 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4995 &scratch_dma_handle);
4996 if (!ha->pscratch)
4997 goto out_free_irq;
4998 ha->scratch_phys = scratch_dma_handle;
4999
5000 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
5001 &scratch_dma_handle);
5002 if (!ha->pmsg)
5003 goto out_free_pscratch;
5004 ha->msg_phys = scratch_dma_handle;
5005
5006#ifdef INT_COAL
5007 ha->coal_stat = pci_alloc_consistent(ha->pdev,
5008 sizeof(gdth_coal_status) * MAXOFFSETS,
5009 &scratch_dma_handle);
5010 if (!ha->coal_stat)
5011 goto out_free_pmsg;
5012 ha->coal_stat_phys = scratch_dma_handle;
5013#endif
5014
5015 ha->scratch_busy = FALSE;
5016 ha->req_first = NULL;
5017 ha->tid_cnt = pdev->device >= 0x200 ? MAXID : MAX_HDRIVES;
5018 if (max_ids > 0 && max_ids < ha->tid_cnt)
5019 ha->tid_cnt = max_ids;
5020 for (i = 0; i < GDTH_MAXCMDS; ++i)
5021 ha->cmd_tab[i].cmnd = UNUSED_CMND;
5022 ha->scan_mode = rescan ? 0x10 : 0;
5023
5024 error = -ENODEV;
5025 if (!gdth_search_drives(ha)) {
5026 printk("GDT-PCI %d: Error during device scan\n", ha->hanum);
5027 goto out_free_coal_stat;
5028 }
5029
5030 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
5031 hdr_channel = ha->bus_cnt;
5032 ha->virt_bus = hdr_channel;
5033
5034 /* 64-bit DMA only supported from FW >= x.43 */
5035 if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT) ||
5036 !ha->dma64_support) {
5037 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
5038 printk(KERN_WARNING "GDT-PCI %d: "
5039 "Unable to set 32-bit DMA\n", ha->hanum);
5040 goto out_free_coal_stat;
5041 }
5042 } else {
5043 shp->max_cmd_len = 16;
5044 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
5045 printk("GDT-PCI %d: 64-bit DMA enabled\n", ha->hanum);
5046 } else if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
5047 printk(KERN_WARNING "GDT-PCI %d: "
5048 "Unable to set 64/32-bit DMA\n", ha->hanum);
5049 goto out_free_coal_stat;
5050 }
5051 }
5052
5053 shp->max_id = ha->tid_cnt;
5054 shp->max_lun = MAXLUN;
5055 shp->max_channel = ha->bus_cnt;
5056
5057 spin_lock_init(&ha->smp_lock);
5058 gdth_enable_int(ha);
5059
5060 error = scsi_add_host(shp, &pdev->dev);
5061 if (error)
5062 goto out_free_coal_stat;
5063 list_add_tail(&ha->list, &gdth_instances);
5064
5065 pci_set_drvdata(ha->pdev, ha);
5066 gdth_timer_init();
5067
5068 scsi_scan_host(shp);
5069
5070 *ha_out = ha;
5071
5072 return 0;
5073
5074 out_free_coal_stat:
5075#ifdef INT_COAL
5076 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
5077 ha->coal_stat, ha->coal_stat_phys);
5078 out_free_pmsg:
5079#endif
5080 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
5081 ha->pmsg, ha->msg_phys);
5082 out_free_pscratch:
5083 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
5084 ha->pscratch, ha->scratch_phys);
5085 out_free_irq:
5086 free_irq(ha->irq, ha);
5087 gdth_ctr_count--;
5088 out_host_put:
5089 scsi_host_put(shp);
5090 return error;
5091}
5092#endif /* CONFIG_PCI */
5093
5094static void gdth_remove_one(gdth_ha_str *ha)
5095{
5096 struct Scsi_Host *shp = ha->shost;
5097
5098 TRACE2(("gdth_remove_one()\n"));
5099
5100 scsi_remove_host(shp);
5101
5102 gdth_flush(ha);
5103
5104 if (ha->sdev) {
5105 scsi_free_host_dev(ha->sdev);
5106 ha->sdev = NULL;
5107 }
5108
5109 if (shp->irq)
5110 free_irq(shp->irq,ha);
5111
5112#ifdef CONFIG_ISA
5113 if (shp->dma_channel != 0xff)
5114 free_dma(shp->dma_channel);
5115#endif
5116#ifdef INT_COAL
5117 if (ha->coal_stat)
5118 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
5119 MAXOFFSETS, ha->coal_stat, ha->coal_stat_phys);
5120#endif
5121 if (ha->pscratch)
5122 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
5123 ha->pscratch, ha->scratch_phys);
5124 if (ha->pmsg)
5125 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
5126 ha->pmsg, ha->msg_phys);
5127 if (ha->ccb_phys)
5128 pci_unmap_single(ha->pdev,ha->ccb_phys,
5129 sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
5130
5131 scsi_host_put(shp);
5132}
5133
5134static int gdth_halt(struct notifier_block *nb, unsigned long event, void *buf)
5135{
5136 gdth_ha_str *ha;
5137
5138 TRACE2(("gdth_halt() event %d\n", (int)event));
5139 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
5140 return NOTIFY_DONE;
5141
5142 list_for_each_entry(ha, &gdth_instances, list)
5143 gdth_flush(ha);
5144
5145 return NOTIFY_OK;
5146}
5147
5148static struct notifier_block gdth_notifier = {
5149 gdth_halt, NULL, 0
5150};
5151
5152static int __init gdth_init(void)
5153{
5154 if (disable) {
5155 printk("GDT-HA: Controller driver disabled from"
5156 " command line !\n");
5157 return 0;
5158 }
5159
5160 printk("GDT-HA: Storage RAID Controller Driver. Version: %s\n",
5161 GDTH_VERSION_STR);
5162
5163 /* initializations */
5164 gdth_polling = TRUE;
5165 gdth_clear_events();
5166 timer_setup(&gdth_timer, gdth_timeout, 0);
5167
5168 /* As default we do not probe for EISA or ISA controllers */
5169 if (probe_eisa_isa) {
5170 /* scanning for controllers, at first: ISA controller */
5171#ifdef CONFIG_ISA
5172 u32 isa_bios;
5173 for (isa_bios = 0xc8000UL; isa_bios <= 0xd8000UL;
5174 isa_bios += 0x8000UL)
5175 gdth_isa_probe_one(isa_bios);
5176#endif
5177#ifdef CONFIG_EISA
5178 {
5179 u16 eisa_slot;
5180 for (eisa_slot = 0x1000; eisa_slot <= 0x8000;
5181 eisa_slot += 0x1000)
5182 gdth_eisa_probe_one(eisa_slot);
5183 }
5184#endif
5185 }
5186
5187#ifdef CONFIG_PCI
5188 /* scanning for PCI controllers */
5189 if (pci_register_driver(&gdth_pci_driver)) {
5190 gdth_ha_str *ha;
5191
5192 list_for_each_entry(ha, &gdth_instances, list)
5193 gdth_remove_one(ha);
5194 return -ENODEV;
5195 }
5196#endif /* CONFIG_PCI */
5197
5198 TRACE2(("gdth_detect() %d controller detected\n", gdth_ctr_count));
5199
5200 major = register_chrdev(0,"gdth", &gdth_fops);
5201 register_reboot_notifier(&gdth_notifier);
5202 gdth_polling = FALSE;
5203 return 0;
5204}
5205
5206static void __exit gdth_exit(void)
5207{
5208 gdth_ha_str *ha;
5209
5210 unregister_chrdev(major, "gdth");
5211 unregister_reboot_notifier(&gdth_notifier);
5212
5213#ifdef GDTH_STATISTICS
5214 del_timer_sync(&gdth_timer);
5215#endif
5216
5217#ifdef CONFIG_PCI
5218 pci_unregister_driver(&gdth_pci_driver);
5219#endif
5220
5221 list_for_each_entry(ha, &gdth_instances, list)
5222 gdth_remove_one(ha);
5223}
5224
5225module_init(gdth_init);
5226module_exit(gdth_exit);
5227
5228#ifndef MODULE
5229__setup("gdth=", option_setup);
5230#endif