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ath11k: purge rx pktlog when entering WoW

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This change is to purge rx pktlog when entering WoW and reap
the mon_status buffer to keep it empty. When leaving WoW, host
restarts the reap timer. In WoW state, it's not allowed to feed
into mon_status rings per firmware team's recommendation.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1644308006-22784-5-git-send-email-quic_cjhuang@quicinc.com
This commit is contained in:
Carl Huang 2022-03-14 07:18:16 +02:00 • committed by Kalle Valo
parent c417b247ba
commit 90bf5c8d0f
1 changed files with 23 additions and 0 deletions

23
drivers/net/wireless/ath/ath11k/wow.c
View file

@ -13,6 +13,7 @@
#include "debug.h"
#include "wmi.h"
#include "wow.h"
#include "dp_rx.h"
static const struct wiphy_wowlan_support ath11k_wowlan_support = {
.flags = WIPHY_WOWLAN_DISCONNECT |
@ -566,6 +567,14 @@ int ath11k_wow_op_suspend(struct ieee80211_hw *hw,
mutex_lock(&ar->conf_mutex);
ret = ath11k_dp_rx_pktlog_stop(ar->ab, true);
if (ret) {
ath11k_warn(ar->ab,
"failed to stop dp rx (and timer) pktlog during wow suspend: %d\n",
ret);
goto exit;
}
ret = ath11k_wow_cleanup(ar);
if (ret) {
ath11k_warn(ar->ab, "failed to clear wow wakeup events: %d\n",
@ -599,6 +608,14 @@ int ath11k_wow_op_suspend(struct ieee80211_hw *hw,
goto cleanup;
}
ret = ath11k_dp_rx_pktlog_stop(ar->ab, false);
if (ret) {
ath11k_warn(ar->ab,
"failed to stop dp rx pktlog during wow suspend: %d\n",
ret);
goto cleanup;
}
ath11k_ce_stop_shadow_timers(ar->ab);
ath11k_dp_stop_shadow_timers(ar->ab);
@ -649,6 +666,12 @@ int ath11k_wow_op_resume(struct ieee80211_hw *hw)
ath11k_hif_ce_irq_enable(ar->ab);
ath11k_hif_irq_enable(ar->ab);
ret = ath11k_dp_rx_pktlog_start(ar->ab);
if (ret) {
ath11k_warn(ar->ab, "failed to start rx pktlog from wow: %d\n", ret);
return ret;
}
ret = ath11k_wow_wakeup(ar->ab);
if (ret) {
ath11k_warn(ar->ab, "failed to wakeup from wow: %d\n", ret);