---

yaml --- r: 122526 b: refs/heads/master c: 9c3444d h: refs/heads/master v: v3
git-mirror · Dec 5, 2008 · 3191fc0 · 3191fc0
1 parent 8aa31bd
commit 3191fc0
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Showing 4 changed files with 37 additions and 26 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1c02667db5eae801b8fc279fdfa618164c0efb6e
+refs/heads/master: 9c3444d33e65ade06af82d19522686c1873b953a
diff --git a/trunk/drivers/net/wireless/rt2x00/rt2x00crypto.c b/trunk/drivers/net/wireless/rt2x00/rt2x00crypto.c
@@ -46,6 +46,29 @@ enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key)
 	}
 }
 
+void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry,
+				       struct txentry_desc *txdesc)
+{
+	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
+	struct ieee80211_key_conf *hw_key = tx_info->control.hw_key;
+
+	__set_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags);
+
+	txdesc->cipher = rt2x00crypto_key_to_cipher(hw_key);
+
+	if (hw_key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
+		__set_bit(ENTRY_TXD_ENCRYPT_PAIRWISE, &txdesc->flags);
+
+	txdesc->key_idx = hw_key->hw_key_idx;
+	txdesc->iv_offset = ieee80211_get_hdrlen_from_skb(entry->skb);
+
+	if (!(hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV))
+		__set_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags);
+
+	if (!(hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_MMIC))
+		__set_bit(ENTRY_TXD_ENCRYPT_MMIC, &txdesc->flags);
+}
+
 unsigned int rt2x00crypto_tx_overhead(struct ieee80211_tx_info *tx_info)
 {
 	struct ieee80211_key_conf *key = tx_info->control.hw_key;

diff --git a/trunk/drivers/net/wireless/rt2x00/rt2x00lib.h b/trunk/drivers/net/wireless/rt2x00/rt2x00lib.h
@@ -218,6 +218,8 @@ static inline void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
  */
 #ifdef CONFIG_RT2X00_LIB_CRYPTO
 enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key);
+void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry,
+				       struct txentry_desc *txdesc);
 unsigned int rt2x00crypto_tx_overhead(struct ieee80211_tx_info *tx_info);
 void rt2x00crypto_tx_copy_iv(struct sk_buff *skb, unsigned int iv_len);
 void rt2x00crypto_tx_remove_iv(struct sk_buff *skb, unsigned int iv_len);
@@ -231,6 +233,11 @@ static inline enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *
 	return CIPHER_NONE;
 }
 
+static inline void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry,
+						     struct txentry_desc *txdesc)
+{
+}
+
 static inline unsigned int rt2x00crypto_tx_overhead(struct ieee80211_tx_info *tx_info)
 {
 	return 0;
@@ -256,7 +263,7 @@ static inline void rt2x00crypto_rx_insert_iv(struct sk_buff *skb,
 					     struct rxdone_entry_desc *rxdesc)
 {
 }
-#endif
+#endif /* CONFIG_RT2X00_LIB_CRYPTO */
 
 /*
  * RFkill handlers.

diff --git a/trunk/drivers/net/wireless/rt2x00/rt2x00queue.c b/trunk/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -55,14 +55,12 @@ struct sk_buff *rt2x00queue_alloc_rxskb(struct rt2x00_dev *rt2x00dev,
 	/*
 	 * For IV/EIV/ICV assembly we must make sure there is
 	 * at least 8 bytes bytes available in headroom for IV/EIV
-	 * and 4 bytes for ICV data as tailroon.
+	 * and 8 bytes for ICV data as tailroon.
 	 */
-#ifdef CONFIG_RT2X00_LIB_CRYPTO
 	if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) {
 		head_size += 8;
-		tail_size += 4;
+		tail_size += 8;
 	}
-#endif /* CONFIG_RT2X00_LIB_CRYPTO */
 
 	/*
 	 * Allocate skbuffer.
@@ -174,7 +172,7 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
 	txdesc->cw_max = entry->queue->cw_max;
 	txdesc->aifs = entry->queue->aifs;
 
-	/* Data length + CRC + IV/EIV/ICV/MMIC (when using encryption) */
+	/* Data length + CRC */
 	data_length = entry->skb->len + 4;
 
 	/*
@@ -183,34 +181,17 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
 	if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK))
 		__set_bit(ENTRY_TXD_ACK, &txdesc->flags);
 
-#ifdef CONFIG_RT2X00_LIB_CRYPTO
 	if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags) &&
 	    !entry->skb->do_not_encrypt) {
-		struct ieee80211_key_conf *hw_key = tx_info->control.hw_key;
-
-		__set_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags);
-
-		txdesc->cipher = rt2x00crypto_key_to_cipher(hw_key);
-
-		if (hw_key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
-			__set_bit(ENTRY_TXD_ENCRYPT_PAIRWISE, &txdesc->flags);
-
-		txdesc->key_idx = hw_key->hw_key_idx;
-		txdesc->iv_offset = ieee80211_get_hdrlen_from_skb(entry->skb);
+		/* Apply crypto specific descriptor information */
+		rt2x00crypto_create_tx_descriptor(entry, txdesc);
 
 		/*
 		 * Extend frame length to include all encryption overhead
 		 * that will be added by the hardware.
 		 */
 		data_length += rt2x00crypto_tx_overhead(tx_info);
-
-		if (!(hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV))
-			__set_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags);
-
-		if (!(hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_MMIC))
-			__set_bit(ENTRY_TXD_ENCRYPT_MMIC, &txdesc->flags);
 	}
-#endif /* CONFIG_RT2X00_LIB_CRYPTO */
 
 	/*
 	 * Check if this is a RTS/CTS frame