#define SCLP_CMDW_READ_EVENT_DATA 0x00770005
#define SCLP_CMDW_WRITE_EVENT_DATA 0x00760005
#define SCLP_CMDW_WRITE_EVENT_MASK 0x00780005
-#define SCLP_CMDW_READ_SCP_INFO 0x00020001
-#define SCLP_CMDW_READ_SCP_INFO_FORCED 0x00120001
#define GDS_ID_MDSMU 0x1310
#define GDS_ID_MDSROUTEINFO 0x1311
typedef u32 sccb_mask_t; /* ATTENTION: assumes 32bit mask !!! */
+struct sccb_header {
+ u16 length;
+ u8 function_code;
+ u8 control_mask[3];
+ u16 response_code;
+} __attribute__((packed));
+
+extern u64 sclp_facilities;
+
+#define SCLP_HAS_CHP_INFO (sclp_facilities & 0x8000000000000000ULL)
+#define SCLP_HAS_CHP_RECONFIG (sclp_facilities & 0x2000000000000000ULL)
+#define SCLP_HAS_CPU_INFO (sclp_facilities & 0x0800000000000000ULL)
+#define SCLP_HAS_CPU_RECONFIG (sclp_facilities & 0x0400000000000000ULL)
+
struct gds_subvector {
u8 length;
u8 key;
/* of some routines it wants to be called from the low level driver */
struct sclp_register {
struct list_head list;
- /* event masks this user is registered for */
+ /* User wants to receive: */
sccb_mask_t receive_mask;
+ /* User wants to send: */
sccb_mask_t send_mask;
- /* actually present events */
+ /* H/W can receive: */
sccb_mask_t sclp_receive_mask;
+ /* H/W can send: */
sccb_mask_t sclp_send_mask;
/* called if event type availability changes */
void (*state_change_fn)(struct sclp_register *);