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From: Jerome Pouiller <Jerome.Pouiller@silabs.com>
To: devel@driverdev.osuosl.org, linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"David S . Miller" <davem@davemloft.net>,
	Kalle Valo <kvalo@codeaurora.org>
Subject: [PATCH 31/32] staging: wfx: fix case where AP stop with CAB traffic pending
Date: Wed,  1 Apr 2020 13:04:04 +0200	[thread overview]
Message-ID: <20200401110405.80282-32-Jerome.Pouiller@silabs.com> (raw)
In-Reply-To: <20200401110405.80282-1-Jerome.Pouiller@silabs.com>

From: Jérôme Pouiller <jerome.pouiller@silabs.com>

When driver has Content After DTIM Beacon (CAB) in queue, it wait for an
indication from the firmware. However, when we stop to send beacons,
this indication may never happen.

Solve this issue by simply simulate this indication. Firmware will send
data that probably nobody will heard.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
---
 drivers/staging/wfx/sta.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/wfx/sta.c b/drivers/staging/wfx/sta.c
index b1ee02d2f515..2e8d3f571c3e 100644
--- a/drivers/staging/wfx/sta.c
+++ b/drivers/staging/wfx/sta.c
@@ -686,6 +686,19 @@ static void wfx_join_finalize(struct wfx_vif *wvif,
 	}
 }
 
+void wfx_enable_beacon(struct wfx_vif *wvif, bool enable)
+{
+	// Driver has Content After DTIM Beacon in queue. Driver is waiting for
+	// a signal from the firmware. Since we are going to stop to send
+	// beacons, this signal will never happens. See also
+	// wfx_suspend_resume_mc()
+	if (!enable && wfx_tx_queues_has_cab(wvif)) {
+		wvif->after_dtim_tx_allowed = true;
+		wfx_bh_request_tx(wvif->wdev);
+	}
+	hif_beacon_transmit(wvif, enable);
+}
+
 void wfx_bss_info_changed(struct ieee80211_hw *hw,
 			     struct ieee80211_vif *vif,
 			     struct ieee80211_bss_conf *info,
@@ -724,7 +737,7 @@ void wfx_bss_info_changed(struct ieee80211_hw *hw,
 
 	if (changed & BSS_CHANGED_BEACON_ENABLED &&
 	    wvif->state != WFX_STATE_IBSS)
-		hif_beacon_transmit(wvif, info->enable_beacon);
+		wfx_enable_beacon(wvif, info->enable_beacon);
 
 	if (changed & BSS_CHANGED_BEACON_INFO)
 		hif_set_beacon_wakeup_period(wvif, info->dtim_period,
-- 
2.25.1

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  parent reply	other threads:[~2020-04-01 11:05 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-01 11:03 [PATCH 00/32] staging: wfx: rework the Tx queue Jerome Pouiller
2020-04-01 11:03 ` [PATCH 01/32] staging: wfx: add sanity checks to hif_join() Jerome Pouiller
2020-04-02 12:42   ` Dan Carpenter
2020-04-02 16:14     ` Jérôme Pouiller
2020-04-01 11:03 ` [PATCH 02/32] staging: wfx: do not stop mac80211 queueing during tx_policy upload Jerome Pouiller
2020-04-01 11:03 ` [PATCH 03/32] staging: wfx: take advantage of ieee80211_{stop/start}_queues Jerome Pouiller
2020-04-01 11:03 ` [PATCH 04/32] staging: wfx: remove "burst" mechanism Jerome Pouiller
2020-04-02 13:05   ` Dan Carpenter
2020-04-02 14:47     ` Jérôme Pouiller
2020-04-01 11:03 ` [PATCH 05/32] staging: wfx: uniformize queue_id retrieval Jerome Pouiller
2020-04-01 11:03 ` [PATCH 06/32] staging: wfx: drop useless queue_id field Jerome Pouiller
2020-04-01 11:03 ` [PATCH 07/32] staging: wfx: avoid useless wake_up Jerome Pouiller
2020-04-01 11:03 ` [PATCH 08/32] staging: wfx: simplify hif_handle_tx_data() Jerome Pouiller
2020-04-02 13:13   ` Dan Carpenter
2020-04-02 14:44     ` Jérôme Pouiller
2020-04-01 11:03 ` [PATCH 09/32] staging: wfx: simplify wfx_tx_queues_empty() Jerome Pouiller
2020-04-01 11:03 ` [PATCH 10/32] staging: wfx: drop unused argument in wfx_get_prio_queue() Jerome Pouiller
2020-04-01 11:03 ` [PATCH 11/32] staging: wfx: simplify wfx_tx_queue_mask_get() Jerome Pouiller
2020-04-01 11:03 ` [PATCH 12/32] staging: wfx: drop useless sta_asleep_mask Jerome Pouiller
2020-04-01 11:03 ` [PATCH 13/32] staging: wfx: drop argument tx_allowed_mask since it is constant now Jerome Pouiller
2020-04-01 11:03 ` [PATCH 14/32] staging: wfx: do not use link_map_cache to track CAB Jerome Pouiller
2020-04-01 11:03 ` [PATCH 15/32] staging: wfx: drop useless link_map_cache Jerome Pouiller
2020-04-01 11:03 ` [PATCH 16/32] staging: wfx: do not rely anymore on link_id to choose packet in queue Jerome Pouiller
2020-04-01 11:03 ` [PATCH 17/32] staging: wfx: drop unused link_id field Jerome Pouiller
2020-04-01 11:03 ` [PATCH 18/32] staging: wfx: drop unused raw_link_id field Jerome Pouiller
2020-04-01 11:03 ` [PATCH 19/32] staging: wfx: rename wfx_tx_get_raw_link_id() Jerome Pouiller
2020-04-01 11:03 ` [PATCH 20/32] staging: wfx: replace wfx_tx_queues_get_after_dtim() by wfx_tx_queues_has_cab() Jerome Pouiller
2020-04-01 11:03 ` [PATCH 21/32] staging: wfx: introduce a counter of pending frames Jerome Pouiller
2020-04-01 11:03 ` [PATCH 22/32] staging: wfx: change the way to choose frame to send Jerome Pouiller
2020-04-01 11:03 ` [PATCH 23/32] staging: wfx: drop now useless field edca_params Jerome Pouiller
2020-04-01 11:03 ` [PATCH 24/32] staging: wfx: drop struct wfx_queue_stats Jerome Pouiller
2020-04-01 11:03 ` [PATCH 25/32] staging: wfx: simplify usage of wfx_tx_queues_put() Jerome Pouiller
2020-04-01 11:03 ` [PATCH 26/32] staging: wfx: improve interface between data_tx.c and queue.c Jerome Pouiller
2020-04-01 11:04 ` [PATCH 27/32] staging: wfx: relocate wfx_skb_dtor() prior its callers Jerome Pouiller
2020-04-01 11:04 ` [PATCH 28/32] staging: wfx: repair wfx_flush() Jerome Pouiller
2020-04-01 11:04 ` [PATCH 29/32] staging: wfx: wfx_flush() did not ensure that frames are processed Jerome Pouiller
2020-04-01 11:04 ` [PATCH 30/32] staging: wfx: fix potential deadlock in wfx_tx_flush() Jerome Pouiller
2020-04-01 11:04 ` Jerome Pouiller [this message]
2020-04-01 11:04 ` [PATCH 32/32] staging: wfx: remove hack about tx_rate policies Jerome Pouiller
2020-04-03  8:03 ` [PATCH 00/32] staging: wfx: rework the Tx queue Dan Carpenter

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