/* * Copyright IBM Corp. 1999,2012 * * Author(s): Martin Peschke * Martin Schwidefsky */ #ifndef __SCLP_H__ #define __SCLP_H__ #include #include #include #include /* maximum number of pages concerning our own memory management */ #define MAX_KMEM_PAGES (sizeof(unsigned long) << 3) #define SCLP_CONSOLE_PAGES 6 #define SCLP_EVTYP_MASK(T) (1U << (32 - (T))) #define EVTYP_OPCMD 0x01 #define EVTYP_MSG 0x02 #define EVTYP_CONFMGMDATA 0x04 #define EVTYP_DIAG_TEST 0x07 #define EVTYP_STATECHANGE 0x08 #define EVTYP_PMSGCMD 0x09 #define EVTYP_ASYNC 0x0A #define EVTYP_CTLPROGIDENT 0x0B #define EVTYP_ERRNOTIFY 0x18 #define EVTYP_VT220MSG 0x1A #define EVTYP_SDIAS 0x1C #define EVTYP_SIGQUIESCE 0x1D #define EVTYP_OCF 0x1E #define EVTYP_OPCMD_MASK SCLP_EVTYP_MASK(EVTYP_OPCMD) #define EVTYP_MSG_MASK SCLP_EVTYP_MASK(EVTYP_MSG) #define EVTYP_CONFMGMDATA_MASK SCLP_EVTYP_MASK(EVTYP_CONFMGMDATA) #define EVTYP_DIAG_TEST_MASK SCLP_EVTYP_MASK(EVTYP_DIAG_TEST) #define EVTYP_STATECHANGE_MASK SCLP_EVTYP_MASK(EVTYP_STATECHANGE) #define EVTYP_PMSGCMD_MASK SCLP_EVTYP_MASK(EVTYP_PMSGCMD) #define EVTYP_ASYNC_MASK SCLP_EVTYP_MASK(EVTYP_ASYNC) #define EVTYP_CTLPROGIDENT_MASK SCLP_EVTYP_MASK(EVTYP_CTLPROGIDENT) #define EVTYP_ERRNOTIFY_MASK SCLP_EVTYP_MASK(EVTYP_ERRNOTIFY) #define EVTYP_VT220MSG_MASK SCLP_EVTYP_MASK(EVTYP_VT220MSG) #define EVTYP_SDIAS_MASK SCLP_EVTYP_MASK(EVTYP_SDIAS) #define EVTYP_SIGQUIESCE_MASK SCLP_EVTYP_MASK(EVTYP_SIGQUIESCE) #define EVTYP_OCF_MASK SCLP_EVTYP_MASK(EVTYP_OCF) #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_CPU_INFO 0x00010001 #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)); struct read_cpu_info_sccb { struct sccb_header header; u16 nr_configured; u16 offset_configured; u16 nr_standby; u16 offset_standby; u8 reserved[4096 - 16]; } __attribute__((packed, aligned(PAGE_SIZE))); static inline void sclp_fill_core_info(struct sclp_core_info *info, struct read_cpu_info_sccb *sccb) { char *page = (char *) sccb; memset(info, 0, sizeof(*info)); info->configured = sccb->nr_configured; info->standby = sccb->nr_standby; info->combined = sccb->nr_configured + sccb->nr_standby; memcpy(&info->core, page + sccb->offset_configured, info->combined * sizeof(struct sclp_core_entry)); } #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; /* 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__ */