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[PATCH] s390: dasd extended error reporting module

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The DASD extended error reporting is a facility that allows to get detailed
information about certain problems in the DASD I/O.  This information can be
used to implement fail-over applications that can recover these problems.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Stefan Weinhuber
2006-02-03 03:03:49 -08:00
committed by Linus Torvalds
parent d237bf4926
commit 12c3a54848
8 changed files with 1231 additions and 5 deletions
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13
include/asm-s390/dasd.h
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@@ -204,7 +204,8 @@ typedef struct attrib_data_t {
*
* Here ist how the ioctl-nr should be used:
* 0 - 31 DASD driver itself
* 32 - 239 still open
* 32 - 229 still open
* 230 - 239 DASD extended error reporting
* 240 - 255 reserved for EMC
*******************************************************************************/
@@ -236,12 +237,22 @@ typedef struct attrib_data_t {
#define BIODASDPSRD _IOR(DASD_IOCTL_LETTER,4,dasd_rssd_perf_stats_t)
/* Get Attributes (cache operations) */
#define BIODASDGATTR _IOR(DASD_IOCTL_LETTER,5,attrib_data_t)
/* retrieve extended error-reporting value */
#define BIODASDEERGET _IOR(DASD_IOCTL_LETTER,6,int)
/* #define BIODASDFORMAT _IOW(IOCTL_LETTER,0,format_data_t) , deprecated */
#define BIODASDFMT _IOW(DASD_IOCTL_LETTER,1,format_data_t)
/* Set Attributes (cache operations) */
#define BIODASDSATTR _IOW(DASD_IOCTL_LETTER,2,attrib_data_t)
/* retrieve extended error-reporting value */
#define BIODASDEERSET _IOW(DASD_IOCTL_LETTER,3,int)
/* remove all records from the eer buffer */
#define DASD_EER_PURGE _IO(DASD_IOCTL_LETTER,230)
/* set the number of pages that are used for the internal eer buffer */
#define DASD_EER_SETBUFSIZE _IOW(DASD_IOCTL_LETTER,230,int)
#endif /* DASD_H */