[for-4.4,5/5] wlcore: Add RX_BA_WIN_SIZE_CHANGE_EVENT event

Message ID 1494524975-2352-6-git-send-email-amit.pundir@linaro.org
State New
Headers show
Series
  • wlcore performance improvement fixes
Related show

Commit Message

Amit Pundir May 11, 2017, 5:49 p.m.
From: Maxim Altshul <maxim.altshul@ti.com>


commit e7ee74b56f23ba447d3124f2eccc32033cca501d upstream.

This event is used by the Firmware to limit the RX BA win size
for a specific link.

The event handler updates the new size in the mac's sta->sta struct.

BA sessions opened for that link will use the new restricted
win_size. This limitation remains until a new update is received or
until the link is closed.

Signed-off-by: Maxim Altshul <maxim.altshul@ti.com>

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

[AmitP: Minor refactoring for linux-4.4.y]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>

---
 drivers/net/wireless/ti/wl18xx/event.c | 28 ++++++++++++++++++++++++++++
 drivers/net/wireless/ti/wl18xx/event.h |  1 +
 drivers/net/wireless/ti/wl18xx/main.c  |  3 ++-
 3 files changed, 31 insertions(+), 1 deletion(-)

-- 
2.7.4

Patch hide | download patch | download mbox

diff --git a/drivers/net/wireless/ti/wl18xx/event.c b/drivers/net/wireless/ti/wl18xx/event.c
index 09c7e098f460..085ef5c87262 100644
--- a/drivers/net/wireless/ti/wl18xx/event.c
+++ b/drivers/net/wireless/ti/wl18xx/event.c
@@ -206,5 +206,33 @@  int wl18xx_process_mailbox_events(struct wl1271 *wl)
 						 mbox->sc_pwd_len,
 						 mbox->sc_pwd);
 
+	if (vector & RX_BA_WIN_SIZE_CHANGE_EVENT_ID) {
+		struct wl12xx_vif *wlvif;
+		struct ieee80211_vif *vif;
+		struct ieee80211_sta *sta;
+		u8 link_id = mbox->rx_ba_link_id;
+		u8 win_size = mbox->rx_ba_win_size;
+		const u8 *addr;
+
+		wlvif = wl->links[link_id].wlvif;
+		vif = wl12xx_wlvif_to_vif(wlvif);
+
+		/* Update RX aggregation window size and call
+		 * MAC routine to stop active RX aggregations for this link
+		 */
+		if (wlvif->bss_type != BSS_TYPE_AP_BSS)
+			addr = vif->bss_conf.bssid;
+		else
+			addr = wl->links[link_id].addr;
+
+		sta = ieee80211_find_sta(vif, addr);
+		if (sta) {
+			sta->max_rx_aggregation_subframes = win_size;
+			ieee80211_stop_rx_ba_session(vif,
+						wl->links[link_id].ba_bitmap,
+						addr);
+		}
+	}
+
 	return 0;
 }
diff --git a/drivers/net/wireless/ti/wl18xx/event.h b/drivers/net/wireless/ti/wl18xx/event.h
index f3d4f13379cb..9495fadc8093 100644
--- a/drivers/net/wireless/ti/wl18xx/event.h
+++ b/drivers/net/wireless/ti/wl18xx/event.h
@@ -38,6 +38,7 @@  enum {
 	REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID      = BIT(18),
 	DFS_CHANNELS_CONFIG_COMPLETE_EVENT       = BIT(19),
 	PERIODIC_SCAN_REPORT_EVENT_ID            = BIT(20),
+	RX_BA_WIN_SIZE_CHANGE_EVENT_ID           = BIT(21),
 	SMART_CONFIG_SYNC_EVENT_ID               = BIT(22),
 	SMART_CONFIG_DECODE_EVENT_ID             = BIT(23),
 	TIME_SYNC_EVENT_ID                       = BIT(24),
diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index 50cce42089a5..47f355e92193 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -1029,7 +1029,8 @@  static int wl18xx_boot(struct wl1271 *wl)
 		DFS_CHANNELS_CONFIG_COMPLETE_EVENT |
 		SMART_CONFIG_SYNC_EVENT_ID |
 		SMART_CONFIG_DECODE_EVENT_ID |
-		TIME_SYNC_EVENT_ID;
+		TIME_SYNC_EVENT_ID |
+		RX_BA_WIN_SIZE_CHANGE_EVENT_ID;
 
 	wl->ap_event_mask = MAX_TX_FAILURE_EVENT_ID;