/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/*
* Copyright ( c ) 2016 Mellanox Technologies Ltd . All rights reserved .
* Copyright ( c ) 2015 System Fabric Works , Inc . All rights reserved .
*/
#ifndef RXE_TASK_H
#define RXE_TASK_H
enum {
TASK_STATE_IDLE = 0 ,
TASK_STATE_BUSY = 1 ,
TASK_STATE_ARMED = 2 ,
TASK_STATE_DRAINING = 3 ,
TASK_STATE_DRAINED = 4 ,
TASK_STATE_INVALID = 5 ,
};
/*
* data structure to describe a ' task ' which is a short
* function that returns 0 as long as it needs to be
* called again .
*/
struct rxe_task {
struct work_struct work;
int state;
spinlock_t lock;
struct rxe_qp *qp;
int (*func)(struct rxe_qp *qp);
int ret;
long num_sched;
long num_done;
};
int rxe_alloc_wq(void );
void rxe_destroy_wq(void );
/*
* init rxe_task structure
* qp = > parameter to pass to func
* func = > function to call until it returns ! = 0
*/
int rxe_init_task(struct rxe_task *task, struct rxe_qp *qp,
int (*func)(struct rxe_qp *));
/* cleanup task */
void rxe_cleanup_task(struct rxe_task *task);
void rxe_sched_task(struct rxe_task *task);
/* keep a task from scheduling */
void rxe_disable_task(struct rxe_task *task);
/* allow task to run */
void rxe_enable_task(struct rxe_task *task);
#endif /* RXE_TASK_H */
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