From: Eliad Peller Date: Mon, 29 Dec 2014 06:24:03 +0000 (+0200) Subject: wlcore/wl18xx: handle rc updates in a separate work X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=7d3b29e5c86e0da38052d33fdd1f195d4591c6b2;p=deliverable%2Flinux.git wlcore/wl18xx: handle rc updates in a separate work sta_rc_update runs in atomic context. thus, a new work should be scheduled in order to configure the fw with the required configuration. Signed-off-by: Eliad Peller Signed-off-by: Kalle Valo --- diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c index 8e562610bf16..96dbe71662c1 100644 --- a/drivers/net/wireless/ti/wl18xx/main.c +++ b/drivers/net/wireless/ti/wl18xx/main.c @@ -1559,26 +1559,19 @@ static u32 wl18xx_pre_pkt_send(struct wl1271 *wl, } static void wl18xx_sta_rc_update(struct wl1271 *wl, - struct wl12xx_vif *wlvif, - struct ieee80211_sta *sta, - u32 changed) + struct wl12xx_vif *wlvif) { - bool wide = sta->bandwidth >= IEEE80211_STA_RX_BW_40; + bool wide = wlvif->rc_update_bw >= IEEE80211_STA_RX_BW_40; wl1271_debug(DEBUG_MAC80211, "mac80211 sta_rc_update wide %d", wide); - if (!(changed & IEEE80211_RC_BW_CHANGED)) - return; - - mutex_lock(&wl->mutex); - /* sanity */ if (WARN_ON(wlvif->bss_type != BSS_TYPE_STA_BSS)) - goto out; + return; /* ignore the change before association */ if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags)) - goto out; + return; /* * If we started out as wide, we can change the operation mode. If we @@ -1589,9 +1582,6 @@ static void wl18xx_sta_rc_update(struct wl1271 *wl, wl18xx_acx_peer_ht_operation_mode(wl, wlvif->sta.hlid, wide); else ieee80211_connection_loss(wl12xx_wlvif_to_vif(wlvif)); - -out: - mutex_unlock(&wl->mutex); } static int wl18xx_set_peer_cap(struct wl1271 *wl, diff --git a/drivers/net/wireless/ti/wlcore/hw_ops.h b/drivers/net/wireless/ti/wlcore/hw_ops.h index aa9f82c72296..29ce55ff8823 100644 --- a/drivers/net/wireless/ti/wlcore/hw_ops.h +++ b/drivers/net/wireless/ti/wlcore/hw_ops.h @@ -211,11 +211,10 @@ wlcore_hw_pre_pkt_send(struct wl1271 *wl, u32 buf_offset, u32 last_len) } static inline void -wlcore_hw_sta_rc_update(struct wl1271 *wl, struct wl12xx_vif *wlvif, - struct ieee80211_sta *sta, u32 changed) +wlcore_hw_sta_rc_update(struct wl1271 *wl, struct wl12xx_vif *wlvif) { if (wl->ops->sta_rc_update) - wl->ops->sta_rc_update(wl, wlvif, sta, changed); + wl->ops->sta_rc_update(wl, wlvif); } static inline int diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c index 6ad3fcedab9b..7b32b4536fff 100644 --- a/drivers/net/wireless/ti/wlcore/main.c +++ b/drivers/net/wireless/ti/wlcore/main.c @@ -226,6 +226,29 @@ void wl12xx_rearm_tx_watchdog_locked(struct wl1271 *wl) msecs_to_jiffies(wl->conf.tx.tx_watchdog_timeout)); } +static void wlcore_rc_update_work(struct work_struct *work) +{ + int ret; + struct wl12xx_vif *wlvif = container_of(work, struct wl12xx_vif, + rc_update_work); + struct wl1271 *wl = wlvif->wl; + + mutex_lock(&wl->mutex); + + if (unlikely(wl->state != WLCORE_STATE_ON)) + goto out; + + ret = wl1271_ps_elp_wakeup(wl); + if (ret < 0) + goto out; + + wlcore_hw_sta_rc_update(wl, wlvif); + + wl1271_ps_elp_sleep(wl); +out: + mutex_unlock(&wl->mutex); +} + static void wl12xx_tx_watchdog_work(struct work_struct *work) { struct delayed_work *dwork; @@ -2279,6 +2302,7 @@ static int wl12xx_init_vif_data(struct wl1271 *wl, struct ieee80211_vif *vif) wl1271_rx_streaming_enable_work); INIT_WORK(&wlvif->rx_streaming_disable_work, wl1271_rx_streaming_disable_work); + INIT_WORK(&wlvif->rc_update_work, wlcore_rc_update_work); INIT_DELAYED_WORK(&wlvif->channel_switch_work, wlcore_channel_switch_work); INIT_DELAYED_WORK(&wlvif->connection_loss_work, @@ -2723,6 +2747,7 @@ unlock: del_timer_sync(&wlvif->rx_streaming_timer); cancel_work_sync(&wlvif->rx_streaming_enable_work); cancel_work_sync(&wlvif->rx_streaming_disable_work); + cancel_work_sync(&wlvif->rc_update_work); cancel_delayed_work_sync(&wlvif->connection_loss_work); cancel_delayed_work_sync(&wlvif->channel_switch_work); cancel_delayed_work_sync(&wlvif->pending_auth_complete_work); @@ -5370,9 +5395,15 @@ static void wlcore_op_sta_rc_update(struct ieee80211_hw *hw, u32 changed) { struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); - struct wl1271 *wl = hw->priv; - wlcore_hw_sta_rc_update(wl, wlvif, sta, changed); + wl1271_debug(DEBUG_MAC80211, "mac80211 sta_rc_update"); + + if (!(changed & IEEE80211_RC_BW_CHANGED)) + return; + + /* this callback is atomic, so schedule a new work */ + wlvif->rc_update_bw = sta->bandwidth; + ieee80211_queue_work(hw, &wlvif->rc_update_work); } static int wlcore_op_get_rssi(struct ieee80211_hw *hw, diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h index df78cf12ef15..2440ebe8a8d6 100644 --- a/drivers/net/wireless/ti/wlcore/wlcore.h +++ b/drivers/net/wireless/ti/wlcore/wlcore.h @@ -106,8 +106,7 @@ struct wlcore_ops { struct wl12xx_vif *wlvif, struct ieee80211_channel_switch *ch_switch); u32 (*pre_pkt_send)(struct wl1271 *wl, u32 buf_offset, u32 last_len); - void (*sta_rc_update)(struct wl1271 *wl, struct wl12xx_vif *wlvif, - struct ieee80211_sta *sta, u32 changed); + void (*sta_rc_update)(struct wl1271 *wl, struct wl12xx_vif *wlvif); int (*set_peer_cap)(struct wl1271 *wl, struct ieee80211_sta_ht_cap *ht_cap, bool allow_ht_operation, diff --git a/drivers/net/wireless/ti/wlcore/wlcore_i.h b/drivers/net/wireless/ti/wlcore/wlcore_i.h index 0e52556044d9..811851d00b33 100644 --- a/drivers/net/wireless/ti/wlcore/wlcore_i.h +++ b/drivers/net/wireless/ti/wlcore/wlcore_i.h @@ -463,6 +463,10 @@ struct wl12xx_vif { /* work for canceling ROC after pending auth reply */ struct delayed_work pending_auth_complete_work; + /* update rate conrol */ + enum ieee80211_sta_rx_bandwidth rc_update_bw; + struct work_struct rc_update_work; + /* * total freed FW packets on the link. * For STA this holds the PN of the link to the AP.