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authorBruno Randolf <br1@einfach.org>2010-09-17 11:36:35 +0900
committerJohn W. Linville <linville@tuxdriver.com>2010-09-21 11:05:08 -0400
commit925e0b061300c94912be36eac16f0b44249a1add (patch)
tree45045b4e80a4235d3ad90f185f39a445a727e0ee /drivers/net/wireless/ath/ath5k/base.h
parent8a63facc376a7b8bb2b64c0ffbdb0949d1d6c71c (diff)
ath5k: Use four hardware queues
Prepare ath5k for WME by using four hardware queues. The way we set up our queues matches the mac80211 queue priority 1:1, so we don't have to do any mapping for queue numbers. Every queue uses 50 of the total 200 available transmit buffers, so the DMA memory usage does not increase with this patch, but it might be good to fine-tune the number of buffers per queue later (depending on the CPU speed and load, and the speed of the medium access, it might not be big enough). Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/base.h')
-rw-r--r--drivers/net/wireless/ath/ath5k/base.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath5k/base.h b/drivers/net/wireless/ath/ath5k/base.h
index dc1241f9c4e8..5e2366d3db09 100644
--- a/drivers/net/wireless/ath/ath5k/base.h
+++ b/drivers/net/wireless/ath/ath5k/base.h
@@ -60,6 +60,9 @@
#define ATH_TXBUF 200 /* number of TX buffers */
#define ATH_BCBUF 1 /* number of beacon buffers */
+#define ATH5K_TXQ_LEN_MAX (ATH_TXBUF / 4) /* bufs per queue */
+#define ATH5K_TXQ_LEN_LOW (ATH5K_TXQ_LEN_MAX / 2) /* low mark */
+
struct ath5k_buf {
struct list_head list;
struct ath5k_desc *desc; /* virtual addr of desc */
@@ -83,6 +86,7 @@ struct ath5k_txq {
struct list_head q; /* transmit queue */
spinlock_t lock; /* lock on q and link */
bool setup;
+ int txq_len; /* number of queued buffers */
};
#define ATH5K_LED_MAX_NAME_LEN 31
@@ -204,7 +208,6 @@ struct ath5k_softc {
spinlock_t txbuflock;
unsigned int txbuf_len; /* buf count in txbuf list */
struct ath5k_txq txqs[AR5K_NUM_TX_QUEUES]; /* tx queues */
- struct ath5k_txq *txq; /* main tx queue */
struct tasklet_struct txtq; /* tx intr tasklet */
struct ath5k_led tx_led; /* tx led */