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Linux kernel mirror (for testing)
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1/*
2 * File...........: linux/drivers/s390/block/dasd_9336_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
9#define PRINTK_HEADER "dasd_erp(9336)"
10
11#include "dasd_int.h"
12
13
14/*
15 * DASD_9336_ERP_EXAMINE
16 *
17 * DESCRIPTION
18 * Checks only for fatal/no/recover error.
19 * A detailed examination of the sense data is done later outside
20 * the interrupt handler.
21 *
22 * The logic is based on the 'IBM 3880 Storage Control Reference' manual
23 * 'Chapter 7. 9336 Sense Data'.
24 *
25 * RETURN VALUES
26 * dasd_era_none no error
27 * dasd_era_fatal for all fatal (unrecoverable errors)
28 * dasd_era_recover for all others.
29 */
30dasd_era_t
31dasd_9336_erp_examine(struct dasd_ccw_req * cqr, struct irb * irb)
32{
33 /* check for successful execution first */
34 if (irb->scsw.cstat == 0x00 &&
35 irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END))
36 return dasd_era_none;
37
38 /* examine the 24 byte sense data */
39 return dasd_era_recover;
40
41} /* END dasd_9336_erp_examine */