* RX/TX meta descriptor format
*
* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
- * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com>
+ * Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
u8 ampdu_commit_factor:1;
u8 ampdu_unused_bit:1;
u8 queue:2;
- u8 reserved:1;
+ u8 assign_seq:1;
u8 vif_id:3;
u8 fill_in_tsf:1;
u8 cab:1;
struct carl9170_tx_superframe {
struct carl9170_tx_superdesc s;
struct ar9170_tx_frame f;
-} __packed;
+} __packed __aligned(4);
#endif /* __CARL9170FW__ */
#define CARL9170_TX_SUPER_MISC_QUEUE 0x3
#define CARL9170_TX_SUPER_MISC_QUEUE_S 0
+#define CARL9170_TX_SUPER_MISC_ASSIGN_SEQ 0x4
#define CARL9170_TX_SUPER_MISC_VIF_ID 0x38
#define CARL9170_TX_SUPER_MISC_VIF_ID_S 3
#define CARL9170_TX_SUPER_MISC_FILL_IN_TSF 0x40
struct _carl9170_tx_superdesc s;
struct _ar9170_tx_hwdesc f;
u8 frame_data[0];
-} __packed;
+} __packed __aligned(4);
#define CARL9170_TX_SUPERDESC_LEN 24
#define AR9170_TX_HWDESC_LEN 8
(t->DAidx & 0xc0) >> 6;
}
+/*
+ * This is an workaround for several undocumented bugs.
+ * Don't mess with the QoS/AC <-> HW Queue map, if you don't
+ * know what you are doing.
+ *
+ * Known problems [hardware]:
+ * * The MAC does not aggregate frames on anything other
+ * than the first HW queue.
+ * * when an AMPDU is placed [in the first hw queue] and
+ * additional frames are already queued on a different
+ * hw queue, the MAC will ALWAYS freeze.
+ *
+ * In a nutshell: The hardware can either do QoS or
+ * Aggregation but not both at the same time. As a
+ * result, this makes the device pretty much useless
+ * for any serious 802.11n setup.
+ */
enum ar9170_txq {
- AR9170_TXQ_BE,
-
- AR9170_TXQ_VI,
- AR9170_TXQ_VO,
- AR9170_TXQ_BK,
+ AR9170_TXQ_BK = 0, /* TXQ0 */
+ AR9170_TXQ_BE, /* TXQ1 */
+ AR9170_TXQ_VI, /* TXQ2 */
+ AR9170_TXQ_VO, /* TXQ3 */
__AR9170_NUM_TXQ,
};
-static const u8 ar9170_qmap[__AR9170_NUM_TXQ] = { 2, 1, 0, 3 };
-
#define AR9170_TXQ_DEPTH 32
#endif /* __CARL9170_SHARED_WLAN_H */