chp.h File Reference

#include <linux/types.h>
#include <linux/device.h>
#include <linux/mutex.h>
#include <asm/chpid.h>
#include "chsc.h"
#include "css.h"

Go to the source code of this file.

Data Structures
struct	chp_link
struct	channel_path

Macros
#define	S390_CHP_H   S390_CHP_H
#define	CHP_STATUS_STANDBY   0
#define	CHP_STATUS_CONFIGURED   1
#define	CHP_STATUS_RESERVED   2
#define	CHP_STATUS_NOT_RECOGNIZED   3
#define	CHP_ONLINE   0
#define	CHP_OFFLINE   1
#define	CHP_VARY_ON   2
#define	CHP_VARY_OFF   3

Functions
int	chp_get_status (struct chp_id chpid)
u8	chp_get_sch_opm (struct subchannel *sch)
int	chp_is_registered (struct chp_id chpid)
void *	chp_get_chp_desc (struct chp_id chpid)
void	chp_remove_cmg_attr (struct channel_path *chp)
int	chp_add_cmg_attr (struct channel_path *chp)
int	chp_new (struct chp_id chpid)
void	chp_cfg_schedule (struct chp_id chpid, int configure)
void	chp_cfg_cancel_deconfigure (struct chp_id chpid)
int	chp_info_get_status (struct chp_id chpid)
int	chp_ssd_get_mask (struct chsc_ssd_info *, struct chp_link *)

Macro Definition Documentation

#define CHP_OFFLINE   1

Definition at line 22 of file chp.h.

#define CHP_ONLINE   0

Definition at line 21 of file chp.h.

#define CHP_STATUS_CONFIGURED   1

Definition at line 17 of file chp.h.

#define CHP_STATUS_NOT_RECOGNIZED   3

Definition at line 19 of file chp.h.

#define CHP_STATUS_RESERVED   2

Definition at line 18 of file chp.h.

#define CHP_STATUS_STANDBY   0

Definition at line 16 of file chp.h.

#define CHP_VARY_OFF   3

Definition at line 24 of file chp.h.

#define CHP_VARY_ON   2

Definition at line 23 of file chp.h.

#define S390_CHP_H   S390_CHP_H

Definition at line 7 of file chp.h.

Function Documentation

int chp_add_cmg_attr

(

struct channel_path *

chp

)

Definition at line 218 of file chp.c.

void chp_cfg_cancel_deconfigure

(

struct chp_id

chpid

)

chp_cfg_cancel_deconfigure - cancel chpid deconfiguration request - channel-path ID

Cancel an active channel-path deconfiguration request if it has not yet been performed.

Definition at line 694 of file chp.c.

void chp_cfg_schedule	(	struct chp_id	chpid,
		int	configure
	)

chp_cfg_schedule - schedule chpid configuration request - channel-path ID - Non-zero for configure, zero for deconfigure

Schedule a channel-path configuration/deconfiguration request.

Definition at line 676 of file chp.c.

void* chp_get_chp_desc

(

struct chp_id

chpid

)

chp_get_chp_desc - return newly allocated channel-path description : channel-path ID

On success return a newly allocated copy of the channel-path description data associated with the given channel-path ID. Return NULL on error.

Definition at line 456 of file chp.c.

u8 chp_get_sch_opm

(

struct subchannel *

sch

)

chp_get_sch_opm - return opm for subchannel : subchannel

Calculate and return the operational path mask (opm) based on the chpids used by the subchannel and the status of the associated channel-paths.

Definition at line 77 of file chp.c.

int chp_get_status

(

struct chp_id

chpid

)

Definition at line 65 of file chp.c.

int chp_info_get_status

(

struct chp_id

chpid

)

chp_info_get_status - retrieve configure status of a channel-path : channel-path ID

On success, return 0 for standby, 1 for configured, 2 for reserved, 3 for not recognized. Return negative error code on error.

Definition at line 581 of file chp.c.

int chp_is_registered

(

struct chp_id

chpid

)

chp_is_registered - check if a channel-path is registered : channel-path ID

Return non-zero if a channel-path with the given chpid is registered, zero otherwise.

Definition at line 102 of file chp.c.

int chp_new

(

struct chp_id

chpid

)

chp_new - register a new channel-path - channel-path ID

Create and register data structure representing new channel-path. Return zero on success, non-zero otherwise.

Definition at line 386 of file chp.c.

void chp_remove_cmg_attr

(

struct channel_path *

chp

)

Definition at line 212 of file chp.c.

int chp_ssd_get_mask	(	struct chsc_ssd_info *	,
		struct chp_link *
	)

Definition at line 524 of file chp.c.