/* 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_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 */