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author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2012-08-28 14:44:51 (GMT) |
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committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-09-26 13:44:57 (GMT) |
commit | d2fc439b99820cccd6978918c260730dd97bf373 (patch) | |
tree | 2f71bb936d3c2a9c3ad2a86a662492229aa07660 /arch/s390/include/asm/eadm.h | |
parent | 382b73663529b756914cf17a9912c9cf00cf0025 (diff) | |
download | linux-d2fc439b99820cccd6978918c260730dd97bf373.tar.xz |
s390: add eadm related structures
Add structures to be used by the eadm subchannel driver.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/eadm.h')
-rw-r--r-- | arch/s390/include/asm/eadm.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/arch/s390/include/asm/eadm.h b/arch/s390/include/asm/eadm.h new file mode 100644 index 0000000..4a65803 --- /dev/null +++ b/arch/s390/include/asm/eadm.h @@ -0,0 +1,74 @@ +#ifndef _ASM_S390_EADM_H +#define _ASM_S390_EADM_H + +#include <linux/types.h> + +struct arqb { + u64 data; + u16 fmt:4; + u16:12; + u16 cmd_code; + u16:16; + u16 msb_count; + u32 reserved[12]; +} __packed; + +#define ARQB_CMD_MOVE 1 + +struct arsb { + u16 fmt:4; + u32:28; + u8 ef; + u8:8; + u8 ecbi; + u8:8; + u8 fvf; + u16:16; + u8 eqc; + u32:32; + u64 fail_msb; + u64 fail_aidaw; + u64 fail_ms; + u64 fail_scm; + u32 reserved[4]; +} __packed; + +struct msb { + u8 fmt:4; + u8 oc:4; + u8 flags; + u16:12; + u16 bs:4; + u32 blk_count; + u64 data_addr; + u64 scm_addr; + u64:64; +} __packed; + +struct aidaw { + u8 flags; + u32 :24; + u32 :32; + u64 data_addr; +} __packed; + +#define MSB_OC_CLEAR 0 +#define MSB_OC_READ 1 +#define MSB_OC_WRITE 2 +#define MSB_OC_RELEASE 3 + +#define MSB_FLAG_BNM 0x80 +#define MSB_FLAG_IDA 0x40 + +#define MSB_BS_4K 0 +#define MSB_BS_1M 1 + +#define AOB_NR_MSB 124 + +struct aob { + struct arqb request; + struct arsb response; + struct msb msb[AOB_NR_MSB]; +} __packed __aligned(PAGE_SIZE); + +#endif /* _ASM_S390_EADM_H */ |