diff options
| author | Horst Hummel <horst.hummel@de.ibm.com> | 2006-06-29 15:08:18 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-06-29 15:08:18 +0200 |
| commit | 405455734e1cdec09c37233216f9240cb1a058e5 (patch) | |
| tree | 36e88909f646b635117041b19a851031fc8ffb41 /drivers/s390/block/dasd_eckd.h | |
| parent | 8f27766a883149926e7c1f69d9f1d8f68efcd65f (diff) | |
| download | linux-rt-405455734e1cdec09c37233216f9240cb1a058e5.tar.gz | |
[S390] add PAV support to the dasd driver.
Add support for parallel-access-volumes to the dasd driver. This
allows concurrent access to dasd devices with multiple channel
programs.
Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/block/dasd_eckd.h')
| -rw-r--r-- | drivers/s390/block/dasd_eckd.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index 9d91c8632569..712ff1650134 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -41,9 +41,10 @@ #define DASD_ECKD_CCW_RESERVE 0xB4 /* - *Perform Subsystem Function / Sub-Orders + * Perform Subsystem Function / Sub-Orders */ -#define PSF_ORDER_PRSSD 0x18 +#define PSF_ORDER_PRSSD 0x18 +#define PSF_ORDER_SSC 0x1D /***************************************************************************** * SECTION: Type Definitions @@ -353,4 +354,15 @@ struct dasd_psf_prssd_data { unsigned char varies[9]; } __attribute__ ((packed)); +/* + * Perform Subsystem Function - Set Subsystem Characteristics + */ +struct dasd_psf_ssc_data { + unsigned char order; + unsigned char flags; + unsigned char cu_type[4]; + unsigned char suborder; + unsigned char reserved[59]; +} __attribute__((packed)); + #endif /* DASD_ECKD_H */ |