c0591c0308
Rename the osif_*_sync_create_with_trans() to a slightly more appropriate osid_*_sync_create_and_trans(), to help convey the fact that the transition does not end when the function returns. Change-Id: I5606fb613d786d65de773dae49fe8ad431b5342f CRs-Fixed: 2406713
173 行
5.4 KiB
C
173 行
5.4 KiB
C
/*
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* Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef __OSIF_VDEV_SYNC_H
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#define __OSIF_VDEV_SYNC_H
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#include "linux/device.h"
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#include "linux/netdevice.h"
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#include "qdf_types.h"
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/**
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* struct osif_vdev_sync - opaque synchronization handle for a vdev
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*/
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struct osif_vdev_sync;
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/**
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* osif_vdev_sync_create() - create a vdev synchronization context
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* @dev: parent device to the vdev
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* @out_vdev_sync: out parameter for the new synchronization context
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*
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* Return: Errno
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*/
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qdf_must_check int
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osif_vdev_sync_create(struct device *dev,
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struct osif_vdev_sync **out_vdev_sync);
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/**
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* osif_vdev_sync_create_and_trans() - create a vdev synchronization context
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* @dev: parent device to the vdev
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* @out_vdev_sync: out parameter for the new synchronization context
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*
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* For protecting the net_device creation process.
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*
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* Return: Errno
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*/
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#define osif_vdev_sync_create_and_trans(dev, out_vdev_sync) \
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__osif_vdev_sync_create_and_trans(dev, out_vdev_sync, __func__)
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qdf_must_check int
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__osif_vdev_sync_create_and_trans(struct device *dev,
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struct osif_vdev_sync **out_vdev_sync,
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const char *desc);
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/**
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* osif_vdev_sync_destroy() - destroy a vdev synchronization context
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* @vdev_sync: the context to destroy
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*
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* Return: none
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*/
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void osif_vdev_sync_destroy(struct osif_vdev_sync *vdev_sync);
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/**
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* osif_vdev_sync_register() - register a vdev for operations/transitions
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* @net_dev: the net_device to use as the operation/transition lookup key
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* @vdev_sync: the vdev synchronization context to register
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*
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* Return: none
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*/
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void osif_vdev_sync_register(struct net_device *net_dev,
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struct osif_vdev_sync *vdev_sync);
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/**
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* osif_vdev_sync_unregister() - unregister a vdev for operations/transitions
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* @net_dev: the net_device originally used to register the vdev_sync context
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*
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* Return: the vdev synchronization context that was registered for @net_dev
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*/
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struct osif_vdev_sync *osif_vdev_sync_unregister(struct net_device *net_dev);
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/**
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* osif_vdev_sync_trans_start() - attempt to start a transition on @net_dev
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* @net_dev: the net_device to transition
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* @out_vdev_sync: out parameter for the synchronization context registered with
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* @net_dev, populated on success
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*
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* Return: Errno
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*/
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#define osif_vdev_sync_trans_start(net_dev, out_vdev_sync) \
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__osif_vdev_sync_trans_start(net_dev, out_vdev_sync, __func__)
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qdf_must_check int
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__osif_vdev_sync_trans_start(struct net_device *net_dev,
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struct osif_vdev_sync **out_vdev_sync,
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const char *desc);
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/**
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* osif_vdev_sync_trans_start_wait() - attempt to start a transition on
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* @net_dev, blocking if a conflicting transition is in flight
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* @net_dev: the net_device to transition
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* @out_vdev_sync: out parameter for the synchronization context registered with
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* @net_dev, populated on success
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*
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* Return: Errno
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*/
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#define osif_vdev_sync_trans_start_wait(net_dev, out_vdev_sync) \
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__osif_vdev_sync_trans_start_wait(net_dev, out_vdev_sync, __func__)
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qdf_must_check int
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__osif_vdev_sync_trans_start_wait(struct net_device *net_dev,
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struct osif_vdev_sync **out_vdev_sync,
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const char *desc);
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/**
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* osif_vdev_sync_trans_stop() - stop a transition associated with @vdev_sync
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* @vdev_sync: the synchonization context tracking the transition
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*
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* Return: none
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*/
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void osif_vdev_sync_trans_stop(struct osif_vdev_sync *vdev_sync);
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/**
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* osif_vdev_sync_assert_trans_protected() - assert that @net_dev is currently
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* protected by a transition
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* @net_dev: the net_device to check
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*
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* Return: none
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*/
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void osif_vdev_sync_assert_trans_protected(struct net_device *net_dev);
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/**
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* osif_vdev_sync_op_start() - attempt to start an operation on @net_dev
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* @net_dev: the net_device to operate against
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* @out_vdev_sync: out parameter for the synchronization context registered with
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* @net_dev, populated on success
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*
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* Return: Errno
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*/
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#define osif_vdev_sync_op_start(net_dev, out_vdev_sync) \
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__osif_vdev_sync_op_start(net_dev, out_vdev_sync, __func__)
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qdf_must_check int
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__osif_vdev_sync_op_start(struct net_device *net_dev,
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struct osif_vdev_sync **out_vdev_sync,
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const char *func);
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/**
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* osif_vdev_sync_op_stop() - stop an operation associated with @vdev_sync
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* @vdev_sync: the synchonization context tracking the operation
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*
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* Return: none
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*/
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#define osif_vdev_sync_op_stop(net_dev) \
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__osif_vdev_sync_op_stop(net_dev, __func__)
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void __osif_vdev_sync_op_stop(struct osif_vdev_sync *vdev_sync,
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const char *func);
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/**
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* osif_vdev_sync_wait_for_ops() - wait until all @vdev_sync operations complete
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* @vdev_sync: the synchonization context tracking the operations
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*
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* Return: None
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*/
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void osif_vdev_sync_wait_for_ops(struct osif_vdev_sync *vdev_sync);
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#endif /* __OSIF_VDEV_SYNC_H */
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