diff options
Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1271_tx.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/wl1271_tx.c | 43 |
1 files changed, 40 insertions, 3 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_tx.c b/drivers/net/wireless/wl12xx/wl1271_tx.c index 00af065c77c..a288cc317d7 100644 --- a/drivers/net/wireless/wl12xx/wl1271_tx.c +++ b/drivers/net/wireless/wl12xx/wl1271_tx.c @@ -121,6 +121,11 @@ static int wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb, pad = pad - skb->len; tx_attr |= pad << TX_HW_ATTR_OFST_LAST_WORD_PAD; + /* if the packets are destined for AP (have a STA entry) send them + with AP rate policies, otherwise use default basic rates */ + if (control->control.sta) + tx_attr |= ACX_TX_AP_FULL_RATE << TX_HW_ATTR_OFST_RATE_POLICY; + desc->tx_attr = cpu_to_le16(tx_attr); wl1271_debug(DEBUG_TX, "tx_fill_hdr: pad: %d", pad); @@ -214,18 +219,50 @@ static int wl1271_tx_frame(struct wl1271 *wl, struct sk_buff *skb) return ret; } +static u32 wl1271_tx_enabled_rates_get(struct wl1271 *wl, u32 rate_set) +{ + struct ieee80211_supported_band *band; + u32 enabled_rates = 0; + int bit; + + band = wl->hw->wiphy->bands[wl->band]; + for (bit = 0; bit < band->n_bitrates; bit++) { + if (rate_set & 0x1) + enabled_rates |= band->bitrates[bit].hw_value; + rate_set >>= 1; + } + + return enabled_rates; +} + void wl1271_tx_work(struct work_struct *work) { struct wl1271 *wl = container_of(work, struct wl1271, tx_work); struct sk_buff *skb; bool woken_up = false; + u32 sta_rates = 0; int ret; + /* check if the rates supported by the AP have changed */ + 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); + } + mutex_lock(&wl->mutex); if (unlikely(wl->state == WL1271_STATE_OFF)) goto out; + /* if rates have changed, re-configure the rate policy */ + if (unlikely(sta_rates)) { + wl->rate_set = wl1271_tx_enabled_rates_get(wl, sta_rates); + wl1271_acx_rate_policies(wl); + } + while ((skb = skb_dequeue(&wl->tx_queue))) { if (!woken_up) { ret = wl1271_ps_elp_wakeup(wl, false); @@ -240,18 +277,18 @@ void wl1271_tx_work(struct work_struct *work) wl1271_debug(DEBUG_TX, "tx_work: fw buffer full, " "stop queues"); ieee80211_stop_queues(wl->hw); - wl->tx_queue_stopped = true; + set_bit(WL1271_FLAG_TX_QUEUE_STOPPED, &wl->flags); skb_queue_head(&wl->tx_queue, skb); goto out; } else if (ret < 0) { dev_kfree_skb(skb); goto out; - } else if (wl->tx_queue_stopped) { + } else if (test_and_clear_bit(WL1271_FLAG_TX_QUEUE_STOPPED, + &wl->flags)) { /* firmware buffer has space, restart queues */ wl1271_debug(DEBUG_TX, "complete_packet: waking queues"); ieee80211_wake_queues(wl->hw); - wl->tx_queue_stopped = false; } } |