diff options
| author | Sujith Manoharan <Sujith.Manoharan@atheros.com> | 2011-04-13 11:25:29 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-04-13 15:23:42 -0400 |
| commit | 8e86a54715c4102a8ed697939de9ebd9715dc59c (patch) | |
| tree | 6ec011dfe718973e3aeba78176a51302744f71d5 /drivers/net/wireless/ath/ath9k/htc.h | |
| parent | 3deff76095c4ac4252e27c537db3041f619c23a2 (diff) | |
| download | blackbird-op-linux-8e86a54715c4102a8ed697939de9ebd9715dc59c.tar.gz blackbird-op-linux-8e86a54715c4102a8ed697939de9ebd9715dc59c.zip | |
ath9k_htc: Fix TX queue management
Handle queue start/stop properly by maintaining
a counter to check if the pending frame count has
exceeded the threshold. Otherwise, packets would be
dropped needlessly. While at it, use a simple flag
to track queue status and use helper functions too.
Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/htc.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h index 3185fe7568cb..fc4c466e7563 100644 --- a/drivers/net/wireless/ath/ath9k/htc.h +++ b/drivers/net/wireless/ath/ath9k/htc.h @@ -262,11 +262,16 @@ struct ath9k_htc_rx { spinlock_t rxbuflock; }; -struct ath9k_htc_tx { - bool tx_queues_stop; - spinlock_t tx_lock; +#define ATH9K_HTC_TX_RESERVE 10 +#define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE) + +#define ATH9K_HTC_OP_TX_QUEUES_STOP BIT(0) +struct ath9k_htc_tx { + u8 flags; + int queued_cnt; struct sk_buff_head tx_queue; + spinlock_t tx_lock; }; struct ath9k_htc_tx_ctl { @@ -532,6 +537,8 @@ int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv); int get_hw_qnum(u16 queue, int *hwq_map); int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum, struct ath9k_tx_queue_info *qinfo); +void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv); +void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv); int ath9k_rx_init(struct ath9k_htc_priv *priv); void ath9k_rx_cleanup(struct ath9k_htc_priv *priv); |
