diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00ht.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00ht.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00ht.c b/drivers/net/wireless/rt2x00/rt2x00ht.c index 1056c92143a..5a407602ce3 100644 --- a/drivers/net/wireless/rt2x00/rt2x00ht.c +++ b/drivers/net/wireless/rt2x00/rt2x00ht.c @@ -35,6 +35,7 @@ void rt2x00ht_create_tx_descriptor(struct queue_entry *entry, { struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); struct ieee80211_tx_rate *txrate = &tx_info->control.rates[0]; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data; if (tx_info->control.sta) txdesc->mpdu_density = @@ -66,4 +67,20 @@ void rt2x00ht_create_tx_descriptor(struct queue_entry *entry, __set_bit(ENTRY_TXD_HT_BW_40, &txdesc->flags); if (txrate->flags & IEEE80211_TX_RC_SHORT_GI) __set_bit(ENTRY_TXD_HT_SHORT_GI, &txdesc->flags); + + /* + * Determine IFS values + * - Use TXOP_BACKOFF for management frames + * - Use TXOP_SIFS for fragment bursts + * - Use TXOP_HTTXOP for everything else + * + * Note: rt2800 devices won't use CTS protection (if used) + * for frames not transmitted with TXOP_HTTXOP + */ + if (ieee80211_is_mgmt(hdr->frame_control)) + txdesc->txop = TXOP_BACKOFF; + else if (!(tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)) + txdesc->txop = TXOP_SIFS; + else + txdesc->txop = TXOP_HTTXOP; } |