- 根目录:
- drivers
- s390
- char
- sclp.h
/*
* 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__ */