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  * $Revision: 1.8 $
   8  */
   9
  10 #define PRINTK_HEADER "dasd_erp(9336)"
  11
  12 #include "dasd_int.h"
  13
  14
  15 /*
  16  * DASD_9336_ERP_EXAMINE
  17  *
  18  * DESCRIPTION
  19  *   Checks only for fatal/no/recover error.
  20  *   A detailed examination of the sense data is done later outside
  21  *   the interrupt handler.
  22  *
  23  *   The logic is based on the 'IBM 3880 Storage Control Reference' manual
  24  *   'Chapter 7. 9336 Sense Data'.
  25  *
  26  * RETURN VALUES
  27  *   dasd_era_none      no error
  28  *   dasd_era_fatal     for all fatal (unrecoverable errors)
  29  *   dasd_era_recover   for all others.
  30  */
  31 dasd_era_t
  32 dasd_9336_erp_examine(struct dasd_ccw_req * cqr, struct irb * irb)
  33 {
  34         /* check for successful execution first */
  35         if (irb->scsw.cstat == 0x00 &&
  36             irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END))
  37                 return dasd_era_none;
  38
  39         /* examine the 24 byte sense data */
  40         return dasd_era_recover;
  41
  42 }                               /* END dasd_9336_erp_examine */
  43
  44 /*
  45  * Overrides for Emacs so that we follow Linus's tabbing style.
  46  * Emacs will notice this stuff at the end of the file and automatically
  47  * adjust the settings for this buffer only.  This must remain at the end
  48  * of the file.
  49  * ---------------------------------------------------------------------------
  50  * Local variables:
  51  * c-indent-level: 4
  52  * c-brace-imaginary-offset: 0
  53  * c-brace-offset: -4
  54  * c-argdecl-indent: 4
  55  * c-label-offset: -4
  56  * c-continued-statement-offset: 4
  57  * c-continued-brace-offset: 0
  58  * indent-tabs-mode: 1
  59  * tab-width: 8
  60  * End:
  61  */