--- /dev/null
+/*
+ * Copyright IBM Corp. 1999,2012
+ *
+ * Author(s): Martin Peschke <mpeschke@de.ibm.com>
+ * Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#ifndef __SCLP_H__
+#define __SCLP_H__
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <asm/sclp.h>
+#include <asm/ebcdic.h>
+
+/* maximum number of pages concerning our own memory management */
+#define MAX_KMEM_PAGES (sizeof(unsigned long) << 3)
+#define SCLP_CONSOLE_PAGES 6
+
+#define EVTYP_OPCMD 0x01
+#define EVTYP_MSG 0x02
+#define EVTYP_DIAG_TEST 0x07
+#define EVTYP_STATECHANGE 0x08
+#define EVTYP_PMSGCMD 0x09
+#define EVTYP_CNTLPROGOPCMD 0x20
+#define EVTYP_CNTLPROGIDENT 0x0B
+#define EVTYP_SIGQUIESCE 0x1D
+#define EVTYP_VT220MSG 0x1A
+#define EVTYP_CONFMGMDATA 0x04
+#define EVTYP_SDIAS 0x1C
+#define EVTYP_ASYNC 0x0A
+#define EVTYP_OCF 0x1E
+
+#define EVTYP_OPCMD_MASK 0x80000000
+#define EVTYP_MSG_MASK 0x40000000
+#define EVTYP_DIAG_TEST_MASK 0x02000000
+#define EVTYP_STATECHANGE_MASK 0x01000000
+#define EVTYP_PMSGCMD_MASK 0x00800000
+#define EVTYP_CTLPROGOPCMD_MASK 0x00000001
+#define EVTYP_CTLPROGIDENT_MASK 0x00200000
+#define EVTYP_SIGQUIESCE_MASK 0x00000008
+#define EVTYP_VT220MSG_MASK 0x00000040
+#define EVTYP_CONFMGMDATA_MASK 0x10000000
+#define EVTYP_SDIAS_MASK 0x00000010
+#define EVTYP_ASYNC_MASK 0x00400000
+#define EVTYP_OCF_MASK 0x00000004
+
+#define GNRLMSGFLGS_DOM 0x8000
+#define GNRLMSGFLGS_SNDALRM 0x4000
+#define GNRLMSGFLGS_HOLDMSG 0x2000
+
+#define LNTPFLGS_CNTLTEXT 0x8000
+#define LNTPFLGS_LABELTEXT 0x4000
+#define LNTPFLGS_DATATEXT 0x2000
+#define LNTPFLGS_ENDTEXT 0x1000
+#define LNTPFLGS_PROMPTTEXT 0x0800
+
+typedef unsigned int sclp_cmdw_t;
+
+#define SCLP_CMDW_READ_EVENT_DATA 0x00770005
+#define SCLP_CMDW_WRITE_EVENT_DATA 0x00760005
+#define SCLP_CMDW_WRITE_EVENT_MASK 0x00780005
+
+#define GDS_ID_MDSMU 0x1310
+#define GDS_ID_MDSROUTEINFO 0x1311
+#define GDS_ID_AGUNWRKCORR 0x1549
+#define GDS_ID_SNACONDREPORT 0x1532
+#define GDS_ID_CPMSU 0x1212
+#define GDS_ID_ROUTTARGINSTR 0x154D
+#define GDS_ID_OPREQ 0x8070
+#define GDS_ID_TEXTCMD 0x1320
+
+#define GDS_KEY_SELFDEFTEXTMSG 0x31
+
+enum sclp_pm_event {
+ SCLP_PM_EVENT_FREEZE,
+ SCLP_PM_EVENT_THAW,
+ SCLP_PM_EVENT_RESTORE,
+};
+
+#define SCLP_PANIC_PRIO 1
+#define SCLP_PANIC_PRIO_CLIENT 0
+
+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));
+
+struct init_sccb {
+ struct sccb_header header;
+ u16 _reserved;
+ u16 mask_length;
+ sccb_mask_t receive_mask;
+ sccb_mask_t send_mask;
+ sccb_mask_t sclp_receive_mask;
+ sccb_mask_t sclp_send_mask;
+} __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)
+#define SCLP_HAS_PCI_RECONFIG (sclp_facilities & 0x0000000040000000ULL)
+
+
+struct gds_subvector {
+ u8 length;
+ u8 key;
+} __attribute__((packed));
+
+struct gds_vector {
+ u16 length;
+ u16 gds_id;
+} __attribute__((packed));
+
+struct evbuf_header {
+ u16 length;
+ u8 type;
+ u8 flags;
+ u16 _reserved;
+} __attribute__((packed));
+
+struct sclp_req {
+ struct list_head list; /* list_head for request queueing. */
+ sclp_cmdw_t command; /* sclp command to execute */
+ void *sccb; /* pointer to the sccb to execute */
+ char status; /* status of this request */
+ int start_count; /* number of SVCs done for this req */
+ /* Callback that is called after reaching final status. */
+ void (*callback)(struct sclp_req *, void *data);
+ void *callback_data;
+ int queue_timeout; /* request queue timeout (sec), set by
+ caller of sclp_add_request(), if
+ needed */
+ /* Internal fields */
+ unsigned long queue_expires; /* request queue timeout (jiffies) */
+};
+
+#define SCLP_REQ_FILLED 0x00 /* request is ready to be processed */
+#define SCLP_REQ_QUEUED 0x01 /* request is queued to be processed */
+#define SCLP_REQ_RUNNING 0x02 /* request is currently running */
+#define SCLP_REQ_DONE 0x03 /* request is completed successfully */
+#define SCLP_REQ_FAILED 0x05 /* request is finally failed */
+#define SCLP_REQ_QUEUED_TIMEOUT 0x06 /* request on queue timed out */
+
+#define SCLP_QUEUE_INTERVAL 5 /* timeout interval for request queue */
+
+/* function pointers that a high level driver has to use for registration */
+/* of some routines it wants to be called from the low level driver */
+struct sclp_register {
+ struct list_head list;
+ /* User wants to receive: */
+ sccb_mask_t receive_mask;
+ /* User wants to send: */
+ sccb_mask_t send_mask;
+ /* 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 *);
+ /* called for events in cp_receive_mask/sclp_receive_mask */
+ void (*receiver_fn)(struct evbuf_header *);
+ /* called for power management events */
+ void (*pm_event_fn)(struct sclp_register *, enum sclp_pm_event);
+ /* pm event posted flag */
+ int pm_event_posted;
+};
+
+/* externals from sclp.c */
+int sclp_add_request(struct sclp_req *req);
+void sclp_sync_wait(void);
+int sclp_register(struct sclp_register *reg);
+void sclp_unregister(struct sclp_register *reg);
+int sclp_remove_processed(struct sccb_header *sccb);
+int sclp_deactivate(void);
+int sclp_reactivate(void);
+int sclp_service_call(sclp_cmdw_t command, void *sccb);
+int sclp_sync_request(sclp_cmdw_t command, void *sccb);
+int sclp_sync_request_timeout(sclp_cmdw_t command, void *sccb, int timeout);
+
+int sclp_sdias_init(void);
+void sclp_sdias_exit(void);
+
+extern int sclp_console_pages;
+extern int sclp_console_drop;
+extern unsigned long sclp_console_full;
+extern u8 sclp_fac84;
+extern unsigned long long sclp_rzm;
+extern unsigned long long sclp_rnmax;
+
+/* useful inlines */
+
+/* VM uses EBCDIC 037, LPAR+native(SE+HMC) use EBCDIC 500 */
+/* translate single character from ASCII to EBCDIC */
+static inline unsigned char
+sclp_ascebc(unsigned char ch)
+{
+ return (MACHINE_IS_VM) ? _ascebc[ch] : _ascebc_500[ch];
+}
+
+/* translate string from EBCDIC to ASCII */
+static inline void
+sclp_ebcasc_str(unsigned char *str, int nr)
+{
+ (MACHINE_IS_VM) ? EBCASC(str, nr) : EBCASC_500(str, nr);
+}
+
+/* translate string from ASCII to EBCDIC */
+static inline void
+sclp_ascebc_str(unsigned char *str, int nr)
+{
+ (MACHINE_IS_VM) ? ASCEBC(str, nr) : ASCEBC_500(str, nr);
+}
+
+static inline struct gds_vector *
+sclp_find_gds_vector(void *start, void *end, u16 id)
+{
+ struct gds_vector *v;
+
+ for (v = start; (void *) v < end; v = (void *) v + v->length)
+ if (v->gds_id == id)
+ return v;
+ return NULL;
+}
+
+static inline struct gds_subvector *
+sclp_find_gds_subvector(void *start, void *end, u8 key)
+{
+ struct gds_subvector *sv;
+
+ for (sv = start; (void *) sv < end; sv = (void *) sv + sv->length)
+ if (sv->key == key)
+ return sv;
+ return NULL;
+}
+
+#endif /* __SCLP_H__ */
Code Review / kvmfornfv.git / blobdiff