From fd49f41aa0c125ec649c56a45337b3024d6b1736 Mon Sep 17 00:00:00 2001 From: Horst Hummel Date: Sat, 3 Sep 2005 15:58:00 -0700 Subject: [PATCH] s390: 64 bit diag250 support Add support for diag 250 access to dasd devices for 64 bit kernels. In addition fix detach/attach for diag disks. The VM control block needs to get recreated by a call to mdsk_init_io. Signed-off-by: Horst Hummel Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/s390/block/dasd_diag.h | 105 ++++++++++++++++++++++++++++++++++++----- 1 file changed, 94 insertions(+), 11 deletions(-) (limited to 'drivers/s390/block/dasd_diag.h') diff --git a/drivers/s390/block/dasd_diag.h b/drivers/s390/block/dasd_diag.h index a0c38e303979..b26eb28df4bf 100644 --- a/drivers/s390/block/dasd_diag.h +++ b/drivers/s390/block/dasd_diag.h @@ -6,7 +6,7 @@ * Bugreports.to..: * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000 * - * $Revision: 1.6 $ + * $Revision: 1.7 $ */ #define MDSK_WRITE_REQ 0x01 @@ -19,6 +19,18 @@ #define DEV_CLASS_FBA 0x01 #define DEV_CLASS_ECKD 0x04 +#define DASD_DIAG_LC_INT_CODE 132 +#define DASD_DIAG_LC_INT_STATUS 133 +#define DASD_DIAG_LC_INT_PARM_31BIT 128 +#define DASD_DIAG_LC_INT_PARM_64BIT 4536 +#define DASD_DIAG_CODE_31BIT 0x03 +#define DASD_DIAG_CODE_64BIT 0x07 + +#define DASD_DIAG_RWFLAG_ASYNC 0x02 +#define DASD_DIAG_RWFLAG_NOCACHE 0x01 + +#define DASD_DIAG_FLAGA_FORMAT_64BIT 0x80 + struct dasd_diag_characteristics { u16 dev_nr; u16 rdc_len; @@ -32,35 +44,106 @@ struct dasd_diag_characteristics { u8 rdev_features; } __attribute__ ((packed, aligned(4))); +struct dasd_diag_cms_label { + u8 label_id[4]; + u8 vol_id[6]; + u16 version_id; + u32 block_size; + u32 origin_ptr; + u32 usable_count; + u32 formatted_count; + u32 block_count; + u32 used_count; + u32 fst_size; + u32 fst_count; + u8 format_date[6]; + u8 reserved1[2]; + u32 disk_offset; + u32 map_block; + u32 hblk_disp; + u32 user_disp; + u8 reserved2[4]; + u8 segment_name[8]; +} __attribute__ ((packed)); + +#ifdef CONFIG_ARCH_S390X +#define DASD_DIAG_FLAGA_DEFAULT DASD_DIAG_FLAGA_FORMAT_64BIT + +typedef u64 blocknum_t; +typedef s64 sblocknum_t; + +struct dasd_diag_bio { + u8 type; + u8 status; + u8 spare1[2]; + u32 alet; + blocknum_t block_number; + u64 buffer; +} __attribute__ ((packed, aligned(8))); + +struct dasd_diag_init_io { + u16 dev_nr; + u8 flaga; + u8 spare1[21]; + u32 block_size; + u8 spare2[4]; + blocknum_t offset; + sblocknum_t start_block; + blocknum_t end_block; + u8 spare3[8]; +} __attribute__ ((packed, aligned(8))); + +struct dasd_diag_rw_io { + u16 dev_nr; + u8 flaga; + u8 spare1[21]; + u8 key; + u8 flags; + u8 spare2[2]; + u32 block_count; + u32 alet; + u8 spare3[4]; + u64 interrupt_params; + u64 bio_list; + u8 spare4[8]; +} __attribute__ ((packed, aligned(8))); +#else /* CONFIG_ARCH_S390X */ +#define DASD_DIAG_FLAGA_DEFAULT 0x0 + +typedef u32 blocknum_t; +typedef s32 sblocknum_t; + struct dasd_diag_bio { u8 type; u8 status; u16 spare1; - u32 block_number; + blocknum_t block_number; u32 alet; u32 buffer; } __attribute__ ((packed, aligned(8))); struct dasd_diag_init_io { u16 dev_nr; - u16 spare1[11]; + u8 flaga; + u8 spare1[21]; u32 block_size; - u32 offset; - u32 start_block; - u32 end_block; - u32 spare2[6]; + blocknum_t offset; + sblocknum_t start_block; + blocknum_t end_block; + u8 spare2[24]; } __attribute__ ((packed, aligned(8))); struct dasd_diag_rw_io { u16 dev_nr; - u16 spare1[11]; + u8 flaga; + u8 spare1[21]; u8 key; u8 flags; - u16 spare2; + u8 spare2[2]; u32 block_count; u32 alet; u32 bio_list; u32 interrupt_params; - u32 spare3[5]; + u8 spare3[20]; } __attribute__ ((packed, aligned(8))); - +#endif /* CONFIG_ARCH_S390X */ -- cgit v1.2.3