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qcacmn: Reset RXDMA_BUF ring filters when mon mode is disabled

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Rxdma err destination could still grow even after monitor
status ring filters are reset as part of monitor mode
disablement which will result in RXDMA2SW ring back-pressure.

Fix is to reset RXDMA_BUF ring filters when monitor mode is
disabled.

Change-Id: Ifd56f6bdbf6a5e4c5d39fc5c71dd85925e3d5f33
CRs-Fixed: 2818011
This commit is contained in:
Yeshwanth Sriram Guntuka 2020-11-19 14:37:52 +05:30 • committed by Gerrit - the friendly Code Review server
commit 65e41683c8
2 changed files with 28 additions and 1 deletions
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28
dp/wifi3.0/dp_mon_filter.c
View file

@ -998,6 +998,32 @@ void dp_mon_filter_reset_rx_pkt_log_lite(struct dp_pdev *pdev)
}
#endif /* WDI_EVENT_ENABLE */
#ifdef WLAN_DP_RESET_MON_BUF_RING_FILTER
/**
* dp_mon_should_reset_buf_ring_filter() - Reset the monitor buf ring filter
* @soc: global DP soc handle
*
* WIN has targets which does not support monitor mode, but still do the
* monitor mode init/deinit, only the rxdma1_enable flag will be set to 0.
* MCL need to do the monitor buffer ring filter reset always, but this is
* not needed for WIN targets where rxdma1 is not enabled (the indicator
* that monitor mode is not enabled.
* This function is used as WAR till WIN cleans up the monitor mode
* function for targets where monitor mode is not enabled.
*
* Returns: true
*/
static inline bool dp_mon_should_reset_buf_ring_filter(struct dp_soc *soc)
{
return true;
}
#else
static inline bool dp_mon_should_reset_buf_ring_filter(struct dp_soc *soc)
{
return false;
}
#endif
/**
* dp_mon_filter_update() - Setup the monitor filter setting for a srng
* type
@ -1044,7 +1070,7 @@ QDF_STATUS dp_mon_filter_update(struct dp_pdev *pdev)
dp_mon_filter_ht2_setup(soc, pdev, mon_srng_type, &filter);
mon_mode_set = filter.valid;
if (mon_mode_set) {
if (dp_mon_should_reset_buf_ring_filter(soc) || mon_mode_set) {
status = dp_mon_ht2_rx_ring_cfg(soc, pdev,
mon_srng_type,
&filter.tlv_filter);

1
dp/wifi3.0/dp_types.h
View file

@ -75,6 +75,7 @@
#if defined(WLAN_MAX_PDEVS) && (WLAN_MAX_PDEVS == 1)
#define MAX_PDEV_CNT 1
#define WLAN_DP_RESET_MON_BUF_RING_FILTER
#else
#define MAX_PDEV_CNT 3
#endif