5548977f58
There are various entry and exit prints present in DSC that are not necessary for any debugging purpose. Cleanup these extra logs Change-Id: I0f2f5b03ddc3e4535cc352fd13782eac1a235121 CRs-Fixed: 2616198
390 lines
8.5 KiB
C
390 lines
8.5 KiB
C
/*
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* Copyright (c) 2018-2020 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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#include "qdf_list.h"
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#include "qdf_status.h"
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#include "qdf_talloc.h"
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#include "qdf_types.h"
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#include "__wlan_dsc.h"
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#include "wlan_dsc.h"
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#define __dsc_driver_lock(psoc) __dsc_lock((psoc)->driver)
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#define __dsc_driver_unlock(psoc) __dsc_unlock((psoc)->driver)
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static QDF_STATUS
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__dsc_psoc_create(struct dsc_driver *driver, struct dsc_psoc **out_psoc)
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{
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struct dsc_psoc *psoc;
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if (!dsc_assert(driver))
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return QDF_STATUS_E_INVAL;
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if (!dsc_assert(out_psoc))
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return QDF_STATUS_E_INVAL;
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*out_psoc = NULL;
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psoc = qdf_talloc_type(driver, psoc);
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if (!psoc)
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return QDF_STATUS_E_NOMEM;
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/* init */
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psoc->driver = driver;
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qdf_list_create(&psoc->vdevs, 0);
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__dsc_trans_init(&psoc->trans);
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__dsc_ops_init(&psoc->ops);
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/* attach */
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__dsc_driver_lock(psoc);
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qdf_list_insert_back(&driver->psocs, &psoc->node);
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__dsc_driver_unlock(psoc);
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*out_psoc = psoc;
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return QDF_STATUS_SUCCESS;
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}
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QDF_STATUS
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dsc_psoc_create(struct dsc_driver *driver, struct dsc_psoc **out_psoc)
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{
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QDF_STATUS status;
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status = __dsc_psoc_create(driver, out_psoc);
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return status;
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}
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static void __dsc_psoc_destroy(struct dsc_psoc **out_psoc)
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{
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struct dsc_psoc *psoc;
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if (!dsc_assert(out_psoc))
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return;
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psoc = *out_psoc;
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if (!dsc_assert(psoc))
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return;
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*out_psoc = NULL;
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/* assert no children */
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dsc_assert(qdf_list_empty(&psoc->vdevs));
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/* flush pending transitions */
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while (__dsc_trans_abort(&psoc->trans))
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;
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/* detach */
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__dsc_driver_lock(psoc);
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qdf_list_remove_node(&psoc->driver->psocs, &psoc->node);
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__dsc_driver_unlock(psoc);
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/* de-init */
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__dsc_ops_deinit(&psoc->ops);
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__dsc_trans_deinit(&psoc->trans);
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qdf_list_destroy(&psoc->vdevs);
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psoc->driver = NULL;
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qdf_tfree(psoc);
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}
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void dsc_psoc_destroy(struct dsc_psoc **out_psoc)
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{
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__dsc_psoc_destroy(out_psoc);
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}
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static bool __dsc_psoc_trans_active_down_tree(struct dsc_psoc *psoc)
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{
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struct dsc_vdev *vdev;
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dsc_for_each_psoc_vdev(psoc, vdev) {
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if (__dsc_trans_active(&vdev->trans))
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return true;
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}
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return false;
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}
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#define __dsc_psoc_can_op(psoc) __dsc_psoc_can_trans(psoc)
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/*
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* __dsc_psoc_can_trans() - Returns if the psoc transition can occur or not
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* @psoc: The DSC psoc
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*
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* This function checks if the psoc transition can occur or not by checking if
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* any other down the tree/up the tree transition/operation is taking place.
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*
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* If there are any driver transition taking place, then the psoc trans/ops
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* should be rejected and not queued in the DSC queue. Return QDF_STATUS_E_INVAL
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* in this case.
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*
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* If there any psoc or vdev trans/ops is taking place, then the psoc trans/ops
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* should be rejected and queued in the DSC queue so that it may be resumed
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* after the current trans/ops is completed. Return QDF_STATUS_E_AGAIN in this
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* case.
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*
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* Return: QDF_STATUS_SUCCESS if transition is allowed, error code if not.
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*/
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static QDF_STATUS __dsc_psoc_can_trans(struct dsc_psoc *psoc)
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{
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if (__dsc_trans_active_or_queued(&psoc->driver->trans))
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return QDF_STATUS_E_INVAL;
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if (__dsc_trans_active_or_queued(&psoc->trans) ||
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__dsc_psoc_trans_active_down_tree(psoc))
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return QDF_STATUS_E_AGAIN;
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return QDF_STATUS_SUCCESS;
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}
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static bool __dsc_psoc_can_trigger(struct dsc_psoc *psoc)
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{
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return !__dsc_trans_active_or_queued(&psoc->driver->trans) &&
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!__dsc_trans_active(&psoc->trans) &&
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!__dsc_psoc_trans_active_down_tree(psoc);
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}
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static QDF_STATUS
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__dsc_psoc_trans_start_nolock(struct dsc_psoc *psoc, const char *desc)
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{
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QDF_STATUS status;
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status = __dsc_psoc_can_trans(psoc);
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if (QDF_IS_STATUS_ERROR(status))
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return status;
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return __dsc_trans_start(&psoc->trans, desc);
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}
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static QDF_STATUS
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__dsc_psoc_trans_start(struct dsc_psoc *psoc, const char *desc)
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{
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QDF_STATUS status;
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if (!dsc_assert(psoc))
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return QDF_STATUS_E_INVAL;
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if (!dsc_assert(desc))
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return QDF_STATUS_E_INVAL;
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__dsc_driver_lock(psoc);
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status = __dsc_psoc_trans_start_nolock(psoc, desc);
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__dsc_driver_unlock(psoc);
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return status;
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}
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QDF_STATUS dsc_psoc_trans_start(struct dsc_psoc *psoc, const char *desc)
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{
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QDF_STATUS status;
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dsc_enter_str(desc);
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status = __dsc_psoc_trans_start(psoc, desc);
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if (QDF_IS_STATUS_ERROR(status))
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dsc_exit_status(status);
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return status;
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}
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static QDF_STATUS
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__dsc_psoc_trans_start_wait(struct dsc_psoc *psoc, const char *desc)
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{
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QDF_STATUS status;
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struct dsc_tran tran = { 0 };
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if (!dsc_assert(psoc))
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return QDF_STATUS_E_INVAL;
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if (!dsc_assert(desc))
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return QDF_STATUS_E_INVAL;
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__dsc_driver_lock(psoc);
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/* try to start without waiting */
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status = __dsc_psoc_trans_start_nolock(psoc, desc);
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if (QDF_IS_STATUS_SUCCESS(status) || status == QDF_STATUS_E_INVAL)
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goto unlock;
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status = __dsc_trans_queue(&psoc->trans, &tran, desc);
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if (QDF_IS_STATUS_ERROR(status))
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goto unlock;
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__dsc_driver_unlock(psoc);
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return __dsc_tran_wait(&tran);
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unlock:
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__dsc_driver_unlock(psoc);
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return status;
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}
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QDF_STATUS dsc_psoc_trans_start_wait(struct dsc_psoc *psoc, const char *desc)
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{
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QDF_STATUS status;
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dsc_enter_str(desc);
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status = __dsc_psoc_trans_start_wait(psoc, desc);
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if (QDF_IS_STATUS_ERROR(status))
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dsc_exit_status(status);
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return status;
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}
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static void __dsc_psoc_trigger_trans(struct dsc_psoc *psoc)
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{
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struct dsc_vdev *vdev;
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if (__dsc_driver_trans_trigger_checked(psoc->driver))
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return;
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if (__dsc_trans_trigger(&psoc->trans))
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return;
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dsc_for_each_psoc_vdev(psoc, vdev)
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__dsc_trans_trigger(&vdev->trans);
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}
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static void __dsc_psoc_trans_stop(struct dsc_psoc *psoc)
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{
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if (!dsc_assert(psoc))
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return;
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__dsc_driver_lock(psoc);
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__dsc_trans_stop(&psoc->trans);
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__dsc_psoc_trigger_trans(psoc);
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__dsc_driver_unlock(psoc);
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}
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void dsc_psoc_trans_stop(struct dsc_psoc *psoc)
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{
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__dsc_psoc_trans_stop(psoc);
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}
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static void __dsc_psoc_assert_trans_protected(struct dsc_psoc *psoc)
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{
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if (!dsc_assert(psoc))
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return;
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__dsc_driver_lock(psoc);
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dsc_assert(__dsc_trans_active(&psoc->trans) ||
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__dsc_trans_active(&psoc->driver->trans));
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__dsc_driver_unlock(psoc);
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}
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void dsc_psoc_assert_trans_protected(struct dsc_psoc *psoc)
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{
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__dsc_psoc_assert_trans_protected(psoc);
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}
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bool __dsc_psoc_trans_trigger_checked(struct dsc_psoc *psoc)
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{
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if (qdf_list_empty(&psoc->trans.queue))
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return false;
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/* handled, but don't trigger; we need to wait for more children */
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if (!__dsc_psoc_can_trigger(psoc))
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return true;
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return __dsc_trans_trigger(&psoc->trans);
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}
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static QDF_STATUS __dsc_psoc_op_start(struct dsc_psoc *psoc, const char *func)
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{
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QDF_STATUS status;
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if (!dsc_assert(psoc))
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return QDF_STATUS_E_INVAL;
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if (!dsc_assert(func))
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return QDF_STATUS_E_INVAL;
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__dsc_driver_lock(psoc);
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status = __dsc_psoc_can_op(psoc);
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if (QDF_IS_STATUS_ERROR(status))
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goto unlock;
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status = __dsc_ops_insert(&psoc->ops, func);
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unlock:
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__dsc_driver_unlock(psoc);
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return status;
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}
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QDF_STATUS _dsc_psoc_op_start(struct dsc_psoc *psoc, const char *func)
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{
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QDF_STATUS status;
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status = __dsc_psoc_op_start(psoc, func);
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return status;
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}
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static void __dsc_psoc_op_stop(struct dsc_psoc *psoc, const char *func)
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{
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if (!dsc_assert(psoc))
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return;
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if (!dsc_assert(func))
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return;
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__dsc_driver_lock(psoc);
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if (__dsc_ops_remove(&psoc->ops, func))
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qdf_event_set(&psoc->ops.event);
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__dsc_driver_unlock(psoc);
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}
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void _dsc_psoc_op_stop(struct dsc_psoc *psoc, const char *func)
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{
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__dsc_psoc_op_stop(psoc, func);
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}
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static void __dsc_psoc_wait_for_ops(struct dsc_psoc *psoc)
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{
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struct dsc_vdev *vdev;
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bool wait;
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if (!dsc_assert(psoc))
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return;
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__dsc_driver_lock(psoc);
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wait = psoc->ops.count > 0;
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if (wait)
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qdf_event_reset(&psoc->ops.event);
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__dsc_driver_unlock(psoc);
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if (wait)
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qdf_wait_single_event(&psoc->ops.event, 0);
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/* wait for down-tree ops to complete as well */
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dsc_for_each_psoc_vdev(psoc, vdev)
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dsc_vdev_wait_for_ops(vdev);
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}
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void dsc_psoc_wait_for_ops(struct dsc_psoc *psoc)
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{
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__dsc_psoc_wait_for_ops(psoc);
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}
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