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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-01-13 12:54:28 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-03-07 16:54:32 +0100 |
| commit | 988b86e69ded17f0f1209fd3ef1c4c7f1567dcc1 (patch) | |
| tree | 7ef6e69d88c827190cc5f66f417efc04f0d03d6f /arch/s390/include/asm/clp.h | |
| parent | baebc70a4db86515d55ff1f226088a8e7f5821a0 (diff) | |
| download | linux-988b86e69ded17f0f1209fd3ef1c4c7f1567dcc1.tar.gz | |
s390/pci: add ioctl interface for CLP
Provide a user space interface to issue call logical-processor instructions.
Only selected CLP commands are allowed, enough to get the full overview of
the installed PCI functions.
Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/clp.h')
| -rw-r--r-- | arch/s390/include/asm/clp.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/s390/include/asm/clp.h b/arch/s390/include/asm/clp.h index a0e71a501f7c..5687d62fb0cb 100644 --- a/arch/s390/include/asm/clp.h +++ b/arch/s390/include/asm/clp.h @@ -4,14 +4,23 @@ /* CLP common request & response block size */ #define CLP_BLK_SIZE PAGE_SIZE +#define CLP_LPS_BASE 0 +#define CLP_LPS_PCI 2 + struct clp_req_hdr { u16 len; u16 cmd; + u32 fmt : 4; + u32 reserved1 : 28; + u64 reserved2; } __packed; struct clp_rsp_hdr { u16 len; u16 rsp; + u32 fmt : 4; + u32 reserved1 : 28; + u64 reserved2; } __packed; /* CLP Response Codes */ @@ -25,4 +34,22 @@ struct clp_rsp_hdr { #define CLP_RC_NODATA 0x0080 /* No data available */ #define CLP_RC_FC_UNKNOWN 0x0100 /* Function code not recognized */ +/* Store logical-processor characteristics request */ +struct clp_req_slpc { + struct clp_req_hdr hdr; +} __packed; + +struct clp_rsp_slpc { + struct clp_rsp_hdr hdr; + u32 reserved2[4]; + u32 lpif[8]; + u32 reserved3[8]; + u32 lpic[8]; +} __packed; + +struct clp_req_rsp_slpc { + struct clp_req_slpc request; + struct clp_rsp_slpc response; +} __packed; + #endif |