diff options
Diffstat (limited to 'drivers/s390/block/dasd_eckd.h')
| -rw-r--r-- | drivers/s390/block/dasd_eckd.h | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index d5734e976e1c..712ff1650134 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -1,7 +1,7 @@ -/* +/* * File...........: linux/drivers/s390/block/dasd_eckd.h * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> - * Horst Hummel <Horst.Hummel@de.ibm.com> + * Horst Hummel <Horst.Hummel@de.ibm.com> * Bugreports.to..: <Linux390@de.ibm.com> * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000 * @@ -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 @@ -155,7 +156,7 @@ struct dasd_eckd_characteristics { unsigned char reserved2:4; unsigned char reserved3:8; unsigned char defect_wr:1; - unsigned char XRC_supported:1; + unsigned char XRC_supported:1; unsigned char reserved4:1; unsigned char striping:1; unsigned char reserved5:4; @@ -343,7 +344,7 @@ struct dasd_eckd_path { }; /* - * Perform Subsystem Function - Prepare for Read Subsystem Data + * Perform Subsystem Function - Prepare for Read Subsystem Data */ struct dasd_psf_prssd_data { unsigned char order; @@ -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 */ |