drivers/s390/block/dasd_9336_erp.c

   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  */
  30 dasd_era_t
  31 dasd_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 */
  42
  43 /*
  44  * Overrides for Emacs so that we follow Linus's tabbing style.
  45  * Emacs will notice this stuff at the end of the file and automatically
  46  * adjust the settings for this buffer only.  This must remain at the end
  47  * of the file.
  48  * ---------------------------------------------------------------------------
  49  * Local variables:
  50  * c-indent-level: 4
  51  * c-brace-imaginary-offset: 0
  52  * c-brace-offset: -4
  53  * c-argdecl-indent: 4
  54  * c-label-offset: -4
  55  * c-continued-statement-offset: 4
  56  * c-continued-brace-offset: 0
  57  * indent-tabs-mode: 1
  58  * tab-width: 8
  59  * End:
  60  */