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path: root/drivers/net/wireless/rt2x00/rt2x00queue.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00queue.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00queue.c37
1 files changed, 35 insertions, 2 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 7f442030f5a..898cdd7f57d 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -120,6 +120,7 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
{
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
+ struct rt2x00_intf *intf = vif_to_intf(tx_info->control.vif);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data;
struct ieee80211_rate *rate =
ieee80211_get_tx_rate(rt2x00dev->hw, tx_info);
@@ -127,6 +128,7 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
unsigned int data_length;
unsigned int duration;
unsigned int residual;
+ unsigned long irqflags;
memset(txdesc, 0, sizeof(*txdesc));
@@ -200,6 +202,31 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
}
/*
+ * Hardware should insert sequence counter.
+ * FIXME: We insert a software sequence counter first for
+ * hardware that doesn't support hardware sequence counting.
+ *
+ * This is wrong because beacons are not getting sequence
+ * numbers assigned properly.
+ *
+ * A secondary problem exists for drivers that cannot toggle
+ * sequence counting per-frame, since those will override the
+ * sequence counter given by mac80211.
+ */
+ if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
+ spin_lock_irqsave(&intf->seqlock, irqflags);
+
+ if (test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags))
+ intf->seqno += 0x10;
+ hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
+ hdr->seq_ctrl |= cpu_to_le16(intf->seqno);
+
+ spin_unlock_irqrestore(&intf->seqlock, irqflags);
+
+ __set_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
+ }
+
+ /*
* PLCP setup
* Length calculation depends on OFDM/CCK rate.
*/
@@ -466,9 +493,12 @@ void rt2x00queue_init_rx(struct rt2x00_dev *rt2x00dev)
if (!rt2x00dev->ops->lib->init_rxentry)
return;
- for (i = 0; i < queue->limit; i++)
+ for (i = 0; i < queue->limit; i++) {
+ queue->entries[i].flags = 0;
+
rt2x00dev->ops->lib->init_rxentry(rt2x00dev,
&queue->entries[i]);
+ }
}
void rt2x00queue_init_tx(struct rt2x00_dev *rt2x00dev)
@@ -482,9 +512,12 @@ void rt2x00queue_init_tx(struct rt2x00_dev *rt2x00dev)
if (!rt2x00dev->ops->lib->init_txentry)
continue;
- for (i = 0; i < queue->limit; i++)
+ for (i = 0; i < queue->limit; i++) {
+ queue->entries[i].flags = 0;
+
rt2x00dev->ops->lib->init_txentry(rt2x00dev,
&queue->entries[i]);
+ }
}
}