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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [s390/] [block/] [dasd_3370_erp.c] - Blame information for rev 1275

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/*
 * File...........: linux/drivers/s390/block/dasd_3370_erp.c
 * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
 * Bugreports.to..: <Linux390@de.ibm.com>
 * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 2000
 */
 
#include <asm/ccwcache.h>
 
#include "dasd_int.h"
#include "dasd_3370_erp.h"
#ifdef PRINTK_HEADER
#undef PRINTK_HEADER
#define PRINTK_HEADER "dasd_erp(3370)"
#endif                          /* PRINTK_HEADER */
 
/*
 * DASD_3370_ERP_EXAMINE
 *
 * DESCRIPTION
 *   Checks only for fatal/no/recover error.
 *   A detailed examination of the sense data is done later outside
 *   the interrupt handler.
 *
 *   The logic is based on the 'IBM 3880 Storage Control Reference' manual
 *   'Chapter 7. 3370 Sense Data'.
 *
 * RETURN VALUES
 *   dasd_era_none      no error
 *   dasd_era_fatal     for all fatal (unrecoverable errors)
 *   dasd_era_recover   for all others.
 */
dasd_era_t
dasd_3370_erp_examine (ccw_req_t * cqr, devstat_t * stat)
{
        char *sense = stat->ii.sense.data;
 
        /* check for successful execution first */
        if (stat->cstat == 0x00 &&
            stat->dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END))
                    return dasd_era_none;
        if (sense[0] & 0x80) {   /* CMD reject */
                return dasd_era_fatal;
        }
        if (sense[0] & 0x40) {   /* Drive offline */
                return dasd_era_recover;
        }
        if (sense[0] & 0x20) {   /* Bus out parity */
                return dasd_era_recover;
        }
        if (sense[0] & 0x10) {   /* equipment check */
                if (sense[1] & 0x80) {
                        return dasd_era_fatal;
                }
                return dasd_era_recover;
        }
        if (sense[0] & 0x08) {   /* data check */
                if (sense[1] & 0x80) {
                        return dasd_era_fatal;
                }
                return dasd_era_recover;
        }
        if (sense[0] & 0x04) {   /* overrun */
                if (sense[1] & 0x80) {
                        return dasd_era_fatal;
                }
                return dasd_era_recover;
        }
        if (sense[1] & 0x40) {  /* invalid blocksize */
                return dasd_era_fatal;
        }
        if (sense[1] & 0x04) {  /* file protected */
                return dasd_era_recover;
        }
        if (sense[1] & 0x01) {  /* operation incomplete */
                return dasd_era_recover;
        }
        if (sense[2] & 0x80) {  /* check data erroor */
                return dasd_era_recover;
        }
        if (sense[2] & 0x10) {  /* Env. data present */
                return dasd_era_recover;
        }
        /* examine the 24 byte sense data */
        return dasd_era_recover;
 
}                               /* END dasd_3370_erp_examine */
 
/*
 * Overrides for Emacs so that we follow Linus's tabbing style.
 * Emacs will notice this stuff at the end of the file and automatically
 * adjust the settings for this buffer only.  This must remain at the end
 * of the file.
 * ---------------------------------------------------------------------------
 * Local variables:
 * c-indent-level: 4
 * c-brace-imaginary-offset: 0
 * c-brace-offset: -4
 * c-argdecl-indent: 4
 * c-label-offset: -4
 * c-continued-statement-offset: 4
 * c-continued-brace-offset: 0
 * indent-tabs-mode: nil
 * tab-width: 8
 * End:
 */

Line No.	Rev	Author	Line
1	1275	phoenix	`/*`
2			`* File...........: linux/drivers/s390/block/dasd_3370_erp.c`
3			`* Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>`
4			`* Bugreports.to..: <Linux390@de.ibm.com>`
5			`* (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 2000`
6			`*/`
7
8			`#include <asm/ccwcache.h>`
9
10			`#include "dasd_int.h"`
11			`#include "dasd_3370_erp.h"`
12			`#ifdef PRINTK_HEADER`
13			`#undef PRINTK_HEADER`
14			`#define PRINTK_HEADER "dasd_erp(3370)"`
15			`#endif /* PRINTK_HEADER */`
16
17			`/*`
18			`* DASD_3370_ERP_EXAMINE`
19			`*`
20			`* DESCRIPTION`
21			`* Checks only for fatal/no/recover error.`
22			`* A detailed examination of the sense data is done later outside`
23			`* the interrupt handler.`
24			`*`
25			`* The logic is based on the 'IBM 3880 Storage Control Reference' manual`
26			`* 'Chapter 7. 3370 Sense Data'.`
27			`*`
28			`* RETURN VALUES`
29			`* dasd_era_none no error`
30			`* dasd_era_fatal for all fatal (unrecoverable errors)`
31			`* dasd_era_recover for all others.`
32			`*/`
33			`dasd_era_t`
34			`dasd_3370_erp_examine (ccw_req_t * cqr, devstat_t * stat)`
35			`{`
36			`char *sense = stat->ii.sense.data;`
37
38			`/* check for successful execution first */`
39			`if (stat->cstat == 0x00 &&`
40			`stat->dstat == (DEV_STAT_CHN_END \| DEV_STAT_DEV_END))`
41			`return dasd_era_none;`
42			`if (sense[0] & 0x80) { /* CMD reject */`
43			`return dasd_era_fatal;`
44			`}`
45			`if (sense[0] & 0x40) { /* Drive offline */`
46			`return dasd_era_recover;`
47			`}`
48			`if (sense[0] & 0x20) { /* Bus out parity */`
49			`return dasd_era_recover;`
50			`}`
51			`if (sense[0] & 0x10) { /* equipment check */`
52			`if (sense[1] & 0x80) {`
53			`return dasd_era_fatal;`
54			`}`
55			`return dasd_era_recover;`
56			`}`
57			`if (sense[0] & 0x08) { /* data check */`
58			`if (sense[1] & 0x80) {`
59			`return dasd_era_fatal;`
60			`}`
61			`return dasd_era_recover;`
62			`}`
63			`if (sense[0] & 0x04) { /* overrun */`
64			`if (sense[1] & 0x80) {`
65			`return dasd_era_fatal;`
66			`}`
67			`return dasd_era_recover;`
68			`}`
69			`if (sense[1] & 0x40) { /* invalid blocksize */`
70			`return dasd_era_fatal;`
71			`}`
72			`if (sense[1] & 0x04) { /* file protected */`
73			`return dasd_era_recover;`
74			`}`
75			`if (sense[1] & 0x01) { /* operation incomplete */`
76			`return dasd_era_recover;`
77			`}`
78			`if (sense[2] & 0x80) { /* check data erroor */`
79			`return dasd_era_recover;`
80			`}`
81			`if (sense[2] & 0x10) { /* Env. data present */`
82			`return dasd_era_recover;`
83			`}`
84			`/* examine the 24 byte sense data */`
85			`return dasd_era_recover;`
86
87			`} /* END dasd_3370_erp_examine */`
88
89			`/*`
90			`* Overrides for Emacs so that we follow Linus's tabbing style.`
91			`* Emacs will notice this stuff at the end of the file and automatically`
92			`* adjust the settings for this buffer only. This must remain at the end`
93			`* of the file.`
94			`* ---------------------------------------------------------------------------`
95			`* Local variables:`
96			`* c-indent-level: 4`
97			`* c-brace-imaginary-offset: 0`
98			`* c-brace-offset: -4`
99			`* c-argdecl-indent: 4`
100			`* c-label-offset: -4`
101			`* c-continued-statement-offset: 4`
102			`* c-continued-brace-offset: 0`
103			`* indent-tabs-mode: nil`
104			`* tab-width: 8`
105			`* End:`
106			`*/`

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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [s390/] [block/] [dasd_3370_erp.c] - Blame information for rev 1275