wl12xx: Add support to RX packets payload alignment
In case of QoS packets the packet payload isn't aligned to
4 bytes. In that case the mac80211 layer take care of that
via memmove() in ieee80211_deliver_skb().
Add support of copy packets from aggregation buffer to the
skbs with packet payload aligned care. In case of QoS packets
copy the packets in offset of 2 bytes guarantee payload aligned
to 4 bytes.
Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
diff --git a/drivers/net/wireless/wl12xx/rx.h b/drivers/net/wireless/wl12xx/rx.h
index c88e3fa..0325b9d 100644
--- a/drivers/net/wireless/wl12xx/rx.h
+++ b/drivers/net/wireless/wl12xx/rx.h
@@ -93,9 +93,11 @@
#define WL1271_RX_DESC_MIC_FAIL 0x02
#define WL1271_RX_DESC_DRIVER_RX_Q_FAIL 0x03
-#define RX_MEM_BLOCK_MASK 0xFF
-#define RX_BUF_SIZE_MASK 0xFFF00
-#define RX_BUF_SIZE_SHIFT_DIV 6
+#define RX_MEM_BLOCK_MASK 0xFF
+#define RX_BUF_SIZE_MASK 0xFFF00
+#define RX_BUF_SIZE_SHIFT_DIV 6
+/* If set, the start of IP payload is not 4 bytes aligned */
+#define RX_BUF_UNALIGNED_PAYLOAD BIT(20)
enum {
WL12XX_RX_CLASS_UNKNOWN,