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#ifndef PRIO_H_INCLUDED
#define PRIO_H_INCLUDED
/*
* knowing about path struct gives flexibility to prioritizers
*/
#include "checkers.h"
#include "vector.h"
/* forward declaration to avoid circular dependency */
struct path;
#include "list.h"
#include "defaults.h"
/*
* Known prioritizers for use in hwtable.c
*/
#define PRIO_ALUA "alua"
#define PRIO_CONST "const"
#define PRIO_DATACORE "datacore"
#define PRIO_EMC "emc"
#define PRIO_HDS "hds"
#define PRIO_HP_SW "hp_sw"
#define PRIO_IET "iet"
#define PRIO_ONTAP "ontap"
#define PRIO_RANDOM "random"
#define PRIO_RDAC "rdac"
#define PRIO_WEIGHTED_PATH "weightedpath"
#define PRIO_SYSFS "sysfs"
#define PRIO_PATH_LATENCY "path_latency"
#define PRIO_ANA "ana"
/*
* Value used to mark the fact prio was not defined
*/
#define PRIO_UNDEF -1
/*
* strings lengths
*/
#define LIB_PRIO_NAMELEN 255
#define PRIO_NAME_LEN 16
#define PRIO_ARGS_LEN 255
struct prio {
void *handle;
int refcount;
struct list_head node;
char name[PRIO_NAME_LEN];
char args[PRIO_ARGS_LEN];
int (*getprio)(struct path *, char *);
};
unsigned int get_prio_timeout_ms(const struct path *);
int init_prio(void);
void cleanup_prio (void);
struct prio * add_prio (const char *);
int prio_getprio (struct prio *, struct path *);
void prio_get (struct prio *, const char *, const char *);
void prio_put (struct prio *);
int prio_selected (const struct prio *);
const char * prio_name (const struct prio *);
const char * prio_args (const struct prio *);
int prio_set_args (struct prio *, const char *);
/* The only function exported by prioritizer dynamic libraries (.so) */
int getprio(struct path *, char *);
#endif /* PRIO_H_INCLUDED */
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