mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-08 17:46:39 +07:00
138c014dcb
Dasd code cleanup: 1) remove white space, 2) remove the emacs override sections, and 3) use kzalloc instead of kmalloc. Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
/*
|
|
* 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
|
|
*
|
|
*/
|
|
|
|
#define PRINTK_HEADER "dasd_erp(3370)"
|
|
|
|
#include "dasd_int.h"
|
|
|
|
|
|
/*
|
|
* 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(struct dasd_ccw_req * cqr, struct irb * irb)
|
|
{
|
|
char *sense = irb->ecw;
|
|
|
|
/* check for successful execution first */
|
|
if (irb->scsw.cstat == 0x00 &&
|
|
irb->scsw.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 */
|