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qcacmn: Handle RTPM counter for opt wifi dp

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Inorder to keep the PCIe link up during
optional wifi dp transfer the
hif_force_wake_request() is called during
filter addition. This increments the rtpm_get counter.
Now if Wifi is disconnected before releasing the
filters, the corresponding hif_force_wake_release()
call is not made. This causes a mismatch in RTPM GET and
PUT calls and triggers an assert during hdd_wlan_stop_modules().
This change adds a cleanup call to release the force wake
and reduce the rtpm_put counter to prevent the assert.

Change-Id: Idd778275a015922376cf7eb0a7c3d92e75881fe8
CRs-Fixed: 3441186
This commit is contained in:
Namita Nair
2023-03-20 18:36:08 -07:00
committed by Madan Koyyalamudi
parent 2bea262d35
commit 42381bb34d
4 changed files with 101 additions and 36 deletions
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32
dp/wifi3.0/dp_ipa.c
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@@ -1354,6 +1354,36 @@ void dp_rx_alt_ipa_uc_detach(struct dp_soc *soc, struct dp_pdev *pdev)
{ }
#endif
/**
* dp_ipa_opt_wifi_dp_cleanup() - Cleanup ipa opt wifi dp filter setup
* @soc: data path instance
* @pdev: core txrx pdev context
*
* This function will cleanup filter setup for optional wifi dp.
*
* Return: none
*/
#ifdef IPA_OPT_WIFI_DP
static void dp_ipa_opt_wifi_dp_cleanup(struct dp_soc *soc, struct dp_pdev *pdev)
{
struct hal_soc *hal_soc = (struct hal_soc *)soc->hal_soc;
struct hif_softc *hif = (struct hif_softc *)(hal_soc->hif_handle);
int count = qdf_atomic_read(&hif->opt_wifi_dp_rtpm_cnt);
int i;
for (i = count; i > 0; i--) {
dp_info("opt_dp: cleanup call pcie link down");
dp_ipa_pcie_link_down((struct cdp_soc_t *)soc);
}
}
#else
static inline
void dp_opt_wifi_dp(struct dp_soc *soc, struct dp_pdev *pdev)
{
}
#endif
int dp_ipa_uc_detach(struct dp_soc *soc, struct dp_pdev *pdev)
{
if (!wlan_cfg_is_ipa_enabled(soc->wlan_cfg_ctx))
@@ -1371,6 +1401,8 @@ int dp_ipa_uc_detach(struct dp_soc *soc, struct dp_pdev *pdev)
/* Cleanup 2nd RX pipe resources */
dp_rx_alt_ipa_uc_detach(soc, pdev);
dp_ipa_opt_wifi_dp_cleanup(soc, pdev);
return QDF_STATUS_SUCCESS; /* success */
}