/* 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_START = 0, TASK_STATE_BUSY = 1, TASK_STATE_ARMED = 2, }; /* * 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 tasklet_struct tasklet; int state; spinlock_t lock; void *arg; int (*func)(void *arg); int ret; bool destroyed; }; /* * init rxe_task structure * arg => parameter to pass to fcn * func => function to call until it returns != 0 */ int rxe_init_task(struct rxe_task *task, void *arg, int (*func)(void *)); /* cleanup task */ void rxe_cleanup_task(struct rxe_task *task); /* * raw call to func in loop without any checking * can call when tasklets are disabled */ int __rxe_do_task(struct rxe_task *task); void rxe_run_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 */