126 lines
4.3 KiB
C
126 lines
4.3 KiB
C
/*-
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* Copyright (c) 2014 Jeffrey Roberson <jeff@freebsd.org>
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* Copyright (c) 2016 Matthew Macy <mmacy@nextbsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_GTASKQUEUE_H_
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#define _SYS_GTASKQUEUE_H_
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#include <sys/taskqueue.h>
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#ifndef _KERNEL
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#error "no user-servicable parts inside"
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#endif
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struct gtaskqueue;
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typedef void (*gtaskqueue_enqueue_fn)(void *context);
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/*
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* Taskqueue groups. Manages dynamic thread groups and irq binding for
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* device and other tasks.
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*/
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void gtaskqueue_block(struct gtaskqueue *queue);
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void gtaskqueue_unblock(struct gtaskqueue *queue);
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int gtaskqueue_cancel(struct gtaskqueue *queue, struct gtask *gtask);
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void gtaskqueue_drain(struct gtaskqueue *queue, struct gtask *task);
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void gtaskqueue_drain_all(struct gtaskqueue *queue);
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int grouptaskqueue_enqueue(struct gtaskqueue *queue, struct gtask *task);
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void taskqgroup_attach(struct taskqgroup *qgroup, struct grouptask *grptask,
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void *uniq, int irq, char *name);
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int taskqgroup_attach_cpu(struct taskqgroup *qgroup, struct grouptask *grptask,
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void *uniq, int cpu, int irq, char *name);
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void taskqgroup_detach(struct taskqgroup *qgroup, struct grouptask *gtask);
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struct taskqgroup *taskqgroup_create(char *name);
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void taskqgroup_destroy(struct taskqgroup *qgroup);
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int taskqgroup_adjust(struct taskqgroup *qgroup, int cnt, int stride);
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#define TASK_ENQUEUED 0x1
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#define TASK_SKIP_WAKEUP 0x2
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#define GTASK_INIT(task, flags, priority, func, context) do { \
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(task)->ta_flags = flags; \
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(task)->ta_priority = (priority); \
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(task)->ta_func = (func); \
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(task)->ta_context = (context); \
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} while (0)
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#define GROUPTASK_INIT(gtask, priority, func, context) \
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GTASK_INIT(&(gtask)->gt_task, TASK_SKIP_WAKEUP, priority, func, context)
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#define GROUPTASK_ENQUEUE(gtask) \
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grouptaskqueue_enqueue((gtask)->gt_taskqueue, &(gtask)->gt_task)
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#define TASKQGROUP_DECLARE(name) \
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extern struct taskqgroup *qgroup_##name
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#ifdef EARLY_AP_STARTUP
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#define TASKQGROUP_DEFINE(name, cnt, stride) \
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\
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struct taskqgroup *qgroup_##name; \
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\
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static void \
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taskqgroup_define_##name(void *arg) \
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{ \
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qgroup_##name = taskqgroup_create(#name); \
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taskqgroup_adjust(qgroup_##name, (cnt), (stride)); \
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} \
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\
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SYSINIT(taskqgroup_##name, SI_SUB_INIT_IF, SI_ORDER_FIRST, \
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taskqgroup_define_##name, NULL)
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#else
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#define TASKQGROUP_DEFINE(name, cnt, stride) \
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\
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struct taskqgroup *qgroup_##name; \
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\
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static void \
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taskqgroup_define_##name(void *arg) \
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{ \
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qgroup_##name = taskqgroup_create(#name); \
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} \
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\
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SYSINIT(taskqgroup_##name, SI_SUB_INIT_IF, SI_ORDER_FIRST, \
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taskqgroup_define_##name, NULL); \
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\
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static void \
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taskqgroup_adjust_##name(void *arg) \
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{ \
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taskqgroup_adjust(qgroup_##name, (cnt), (stride)); \
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} \
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\
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SYSINIT(taskqgroup_adj_##name, SI_SUB_SMP, SI_ORDER_ANY, \
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taskqgroup_adjust_##name, NULL); \
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\
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struct __hack
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#endif
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TASKQGROUP_DECLARE(net);
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#endif /* !_SYS_GTASKQUEUE_H_ */
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