diff options
Diffstat (limited to 'drivers/net/wireless/wl12xx')
| -rw-r--r-- | drivers/net/wireless/wl12xx/wl1271_tx.c | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_tx.c b/drivers/net/wireless/wl12xx/wl1271_tx.c index 85878e5e752..dc3172bea0d 100644 --- a/drivers/net/wireless/wl12xx/wl1271_tx.c +++ b/drivers/net/wireless/wl12xx/wl1271_tx.c @@ -212,6 +212,20 @@ u32 wl1271_tx_enabled_rates_get(struct wl1271 *wl, u32 rate_set) return enabled_rates; } +static void handle_tx_low_watermark(struct wl1271 *wl) +{ + unsigned long flags; + + if (test_bit(WL1271_FLAG_TX_QUEUE_STOPPED, &wl->flags) && + skb_queue_len(&wl->tx_queue) <= WL1271_TX_QUEUE_LOW_WATERMARK) { + /* firmware buffer has space, restart queues */ + spin_lock_irqsave(&wl->wl_lock, flags); + ieee80211_wake_queues(wl->hw); + clear_bit(WL1271_FLAG_TX_QUEUE_STOPPED, &wl->flags); + spin_unlock_irqrestore(&wl->wl_lock, flags); + } +} + void wl1271_tx_work_locked(struct wl1271 *wl) { struct sk_buff *skb; @@ -225,6 +239,7 @@ void wl1271_tx_work_locked(struct wl1271 *wl) if (unlikely(test_and_clear_bit(WL1271_FLAG_STA_RATES_CHANGED, &wl->flags))) { unsigned long flags; + spin_lock_irqsave(&wl->wl_lock, flags); sta_rates = wl->sta_rate_set; spin_unlock_irqrestore(&wl->wl_lock, flags); @@ -285,6 +300,7 @@ out_ack: if (sent_packets) { /* interrupt the firmware with the new packets */ wl1271_write32(wl, WL1271_HOST_WR_ACCESS, wl->tx_packets_count); + handle_tx_low_watermark(wl); } out: @@ -399,19 +415,6 @@ void wl1271_tx_complete(struct wl1271 *wl) wl->tx_results_count++; } - - if (test_bit(WL1271_FLAG_TX_QUEUE_STOPPED, &wl->flags) && - skb_queue_len(&wl->tx_queue) <= WL1271_TX_QUEUE_LOW_WATERMARK) { - unsigned long flags; - - /* firmware buffer has space, restart queues */ - wl1271_debug(DEBUG_TX, "tx_complete: waking queues"); - spin_lock_irqsave(&wl->wl_lock, flags); - ieee80211_wake_queues(wl->hw); - clear_bit(WL1271_FLAG_TX_QUEUE_STOPPED, &wl->flags); - spin_unlock_irqrestore(&wl->wl_lock, flags); - ieee80211_queue_work(wl->hw, &wl->tx_work); - } } /* caller must hold wl->mutex */ @@ -426,6 +429,12 @@ void wl1271_tx_reset(struct wl1271 *wl) ieee80211_tx_status(wl->hw, skb); } + /* + * Make sure the driver is at a consistent state, in case this + * function is called from a context other than interface removal. + */ + handle_tx_low_watermark(wl); + for (i = 0; i < ACX_TX_DESCRIPTORS; i++) if (wl->tx_frames[i] != NULL) { skb = wl->tx_frames[i]; |