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qcacmn: Move Rx diag event processing to dedicated work queue

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Firmware generates wmi Rx diag events every few milliseconds,
and processing the same in system shared work queue may lead to
work queue lock-up detection. Hence, move Rx diag event processing
to dedicated work queue.

Change-Id: I10cdde317794e35bc6d10677ab76ea24a66e1880
CRs-Fixed: 2941409
This commit is contained in:
Aditya Kodukula
2021-05-07 15:58:04 -07:00
committed by Madan Koyyalamudi
parent 2b7f792138
commit f0b0951d8a
2 changed files with 12 additions and 3 deletions
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14
wmi/src/wmi_unified.c
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@@ -2318,7 +2318,7 @@ wmi_process_rx_diag_event_worker_thread_ctx(struct wmi_unified *wmi_handle,
num_diag_events_pending = qdf_nbuf_queue_len(
&wmi_handle->diag_event_queue);
if (num_diag_events_pending == RX_DIAG_WQ_MAX_SIZE) {
if (num_diag_events_pending >= RX_DIAG_WQ_MAX_SIZE) {
qdf_spin_unlock_bh(&wmi_handle->diag_eventq_lock);
wmi_handle->wmi_rx_diag_events_dropped++;
wmi_debug_rl("Rx diag events dropped count: %d",
@@ -2330,7 +2330,8 @@ wmi_process_rx_diag_event_worker_thread_ctx(struct wmi_unified *wmi_handle,
qdf_nbuf_queue_add(&wmi_handle->diag_event_queue, evt_buf);
qdf_spin_unlock_bh(&wmi_handle->diag_eventq_lock);
qdf_sched_work(0, &wmi_handle->rx_diag_event_work);
qdf_queue_work(0, wmi_handle->wmi_rx_diag_work_queue,
&wmi_handle->rx_diag_event_work);
}
void wmi_process_fw_event_worker_thread_ctx(struct wmi_unified *wmi_handle,
@@ -2992,6 +2993,13 @@ static QDF_STATUS wmi_initialize_worker_context(struct wmi_unified *wmi_handle)
qdf_nbuf_queue_init(&wmi_handle->event_queue);
qdf_create_work(0, &wmi_handle->rx_event_work,
wmi_rx_event_work, wmi_handle);
wmi_handle->wmi_rx_diag_work_queue =
qdf_alloc_unbound_workqueue("wmi_rx_diag_event_work_queue");
if (!wmi_handle->wmi_rx_diag_work_queue) {
wmi_err("failed to create wmi_rx_diag_event_work_queue");
return QDF_STATUS_E_RESOURCES;
}
qdf_spinlock_create(&wmi_handle->diag_eventq_lock);
qdf_nbuf_queue_init(&wmi_handle->diag_event_queue);
qdf_create_work(0, &wmi_handle->rx_diag_event_work,
@@ -3320,7 +3328,7 @@ wmi_unified_remove_work(struct wmi_unified *wmi_handle)
qdf_spin_unlock_bh(&wmi_handle->eventq_lock);
/* Remove diag events work */
qdf_flush_work(&wmi_handle->rx_diag_event_work);
qdf_flush_workqueue(0, wmi_handle->wmi_rx_diag_work_queue);
qdf_spin_lock_bh(&wmi_handle->diag_eventq_lock);
buf = qdf_nbuf_queue_remove(&wmi_handle->diag_event_queue);
while (buf) {