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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2016-01-13 12:54:28 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2016-03-07 16:54:32 +0100
commit988b86e69ded17f0f1209fd3ef1c4c7f1567dcc1 (patch)
tree7ef6e69d88c827190cc5f66f417efc04f0d03d6f /arch/s390/include/asm/clp.h
parentbaebc70a4db86515d55ff1f226088a8e7f5821a0 (diff)
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.h27
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

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