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qcacld-3.0: Decrease tx drain wait time during del bss

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wma_delete_bss is stuck for more than
400ms in failure scenario due to pending
tx packets to drain.

-Decrease the wait time to 20ms(2ms*max_wait_iterations)
to avoid the delete bss stuck issue.
-Tx drain wait feature added for LFR2.0
feature so moved the code under the LFR2.0
macro.

Change-Id: I33b56bb627ac914ca6fe96949de373b015853fc9
CRs-Fixed: 2097269
This commit is contained in:
Sandeep Puligilla
2017-08-28 13:15:15 -07:00
committed by snandini
parent aca7fc9ece
commit f22263c8e0
1 changed files with 39 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
core/wma/src/wma_dev_if.c
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@@ -4928,6 +4928,44 @@ fail_del_bss_ho_fail:
(void *)params, 0); (void *)params, 0);
} }
#ifdef WLAN_FEATURE_HOST_ROAM
/**
* wma_wait_tx_complete() - Wait till tx packets are drained
* @wma: wma handle
* @session_id: vdev id
*
* Return: none
*/
static void wma_wait_tx_complete(tp_wma_handle wma,
uint32_t session_id)
{
struct cdp_pdev *pdev;
uint8_t max_wait_iterations = 0;
void *soc = cds_get_context(QDF_MODULE_ID_SOC);
if (!wma->interfaces[session_id].is_vdev_valid) {
WMA_LOGE("%s: Vdev is not valid: %d",
__func__, session_id);
return;
}
pdev = cds_get_context(QDF_MODULE_ID_TXRX);
max_wait_iterations =
wma->interfaces[session_id].delay_before_vdev_stop /
WMA_TX_Q_RECHECK_TIMER_WAIT;
while (cdp_get_tx_pending(soc, pdev) && max_wait_iterations) {
WMA_LOGW(FL("Waiting for outstanding packet to drain."));
qdf_wait_single_event(&wma->tx_queue_empty_event,
WMA_TX_Q_RECHECK_TIMER_WAIT);
max_wait_iterations--;
}
}
#else
static void wma_wait_tx_complete(tp_wma_handle wma)
{
}
#endif
/** /**
* wma_delete_bss() - process delete bss request from upper layer * wma_delete_bss() - process delete bss request from upper layer
* @wma: wma handle * @wma: wma handle
@@ -4942,7 +4980,6 @@ void wma_delete_bss(tp_wma_handle wma, tpDeleteBssParams params)
struct wma_target_req *msg; struct wma_target_req *msg;
QDF_STATUS status = QDF_STATUS_SUCCESS; QDF_STATUS status = QDF_STATUS_SUCCESS;
uint8_t peer_id; uint8_t peer_id;
uint8_t max_wait_iterations = 0;
struct cdp_vdev *txrx_vdev = NULL; struct cdp_vdev *txrx_vdev = NULL;
bool roam_synch_in_progress = false; bool roam_synch_in_progress = false;
struct wma_txrx_node *iface; struct wma_txrx_node *iface;
@@ -5028,17 +5065,7 @@ void wma_delete_bss(tp_wma_handle wma, tpDeleteBssParams params)
WMA_LOGW(FL("Outstanding msdu packets: %d"), WMA_LOGW(FL("Outstanding msdu packets: %d"),
cdp_get_tx_pending(soc, pdev)); cdp_get_tx_pending(soc, pdev));
wma_wait_tx_complete(wma, params->smesessionId);
max_wait_iterations =
wma->interfaces[params->smesessionId].delay_before_vdev_stop /
WMA_TX_Q_RECHECK_TIMER_WAIT;
while (cdp_get_tx_pending(soc, pdev) && max_wait_iterations) {
WMA_LOGW(FL("Waiting for outstanding packet to drain."));
qdf_wait_single_event(&wma->tx_queue_empty_event,
WMA_TX_Q_RECHECK_TIMER_MAX_WAIT);
max_wait_iterations--;
}
if (cdp_get_tx_pending(soc, pdev)) { if (cdp_get_tx_pending(soc, pdev)) {
WMA_LOGW(FL("Outstanding msdu packets before VDEV_STOP : %d"), WMA_LOGW(FL("Outstanding msdu packets before VDEV_STOP : %d"),