X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=drivers%2Fnet%2Fwireless%2Frt2x00%2Frt2x00queue.c;h=65435c9fe4bcee7a39fa3d1ad7576a5c49c8f848;hp=a5664bd8493e878062e32bd4e0ec055800faad79;hb=267e898755d7fc6249e26208e7ce97f415fd8c31;hpb=8d98f2246d7c622198ae0b8ca66f1c82b8a25377

diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index a5664bd8493e..65435c9fe4bc 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -148,6 +148,35 @@ void rt2x00queue_free_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb)
 	dev_kfree_skb_any(skb);
 }
 
+void rt2x00queue_payload_align(struct sk_buff *skb,
+			       bool l2pad, unsigned int header_length)
+{
+	struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
+	unsigned int frame_length = skb->len;
+	unsigned int align = ALIGN_SIZE(skb, header_length);
+
+	if (!align)
+		return;
+
+	if (l2pad) {
+		if (skbdesc->flags & SKBDESC_L2_PADDED) {
+			/* Remove L2 padding */
+			memmove(skb->data + align, skb->data, header_length);
+			skb_pull(skb, align);
+			skbdesc->flags &= ~SKBDESC_L2_PADDED;
+		} else {
+			/* Add L2 padding */
+			skb_push(skb, align);
+			memmove(skb->data, skb->data + align, header_length);
+			skbdesc->flags |= SKBDESC_L2_PADDED;
+		}
+	} else {
+		/* Generic payload alignment to 4-byte boundary */
+		skb_push(skb, align);
+		memmove(skb->data, skb->data + align, frame_length);
+	}
+}
+
 static void rt2x00queue_create_tx_descriptor_seq(struct queue_entry *entry,
 						 struct txentry_desc *txdesc)
 {
@@ -258,6 +287,12 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
 	txdesc->cw_max = entry->queue->cw_max;
 	txdesc->aifs = entry->queue->aifs;
 
+	/*
+	 * Header and alignment information.
+	 */
+	txdesc->header_length = ieee80211_get_hdrlen_from_skb(entry->skb);
+	txdesc->l2pad = ALIGN_SIZE(entry->skb, txdesc->header_length);
+
 	/*
 	 * Check whether this frame is to be acked.
 	 */
@@ -289,7 +324,8 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
 	/*
 	 * Check if more fragments are pending
 	 */
-	if (ieee80211_has_morefrags(hdr->frame_control)) {
+	if (ieee80211_has_morefrags(hdr->frame_control) ||
+	    (tx_info->flags & IEEE80211_TX_CTL_MORE_FRAMES)) {
 		__set_bit(ENTRY_TXD_BURST, &txdesc->flags);
 		__set_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags);
 	}
@@ -326,6 +362,7 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
 	 * Apply TX descriptor handling by components
 	 */
 	rt2x00crypto_create_tx_descriptor(entry, txdesc);
+	rt2x00ht_create_tx_descriptor(entry, txdesc, hwrate);
 	rt2x00queue_create_tx_descriptor_seq(entry, txdesc);
 	rt2x00queue_create_tx_descriptor_plcp(entry, txdesc, hwrate);
 }
@@ -368,7 +405,6 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb)
 	struct queue_entry *entry = rt2x00queue_get_entry(queue, Q_INDEX);
 	struct txentry_desc txdesc;
 	struct skb_frame_desc *skbdesc;
-	unsigned int iv_len = 0;
 	u8 rate_idx, rate_flags;
 
 	if (unlikely(rt2x00queue_full(queue)))
@@ -390,9 +426,6 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb)
 	entry->skb = skb;
 	rt2x00queue_create_tx_descriptor(entry, &txdesc);
 
-	if (IEEE80211_SKB_CB(skb)->control.hw_key != NULL)
-		iv_len = IEEE80211_SKB_CB(skb)->control.hw_key->iv_len;
-
 	/*
 	 * All information is retrieved from the skb->cb array,
 	 * now we should claim ownership of the driver part of that
@@ -415,11 +448,15 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb)
 	if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc.flags) &&
 	    !test_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc.flags)) {
 		if (test_bit(DRIVER_REQUIRE_COPY_IV, &queue->rt2x00dev->flags))
-			rt2x00crypto_tx_copy_iv(skb, iv_len);
+			rt2x00crypto_tx_copy_iv(skb, &txdesc);
 		else
-			rt2x00crypto_tx_remove_iv(skb, iv_len);
+			rt2x00crypto_tx_remove_iv(skb, &txdesc);
 	}
 
+	if (test_bit(DRIVER_REQUIRE_L2PAD, &queue->rt2x00dev->flags))
+		rt2x00queue_payload_align(entry->skb, true,
+					  txdesc.header_length);
+
 	/*
 	 * It could be possible that the queue was corrupted and this
 	 * call failed. Since we always return NETDEV_TX_OK to mac80211,