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| author | Ranjit Manomohan <ranjitm@google.com> | 2006-10-18 20:54:26 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-10-18 20:54:26 -0700 |
| commit | 42952231c6a8623117ee3cc89c82d382dc69ca30 (patch) | |
| tree | 8c4db924ae0e1cebfcbedd7da75008675a36c523 /drivers/net/tg3.c | |
| parent | 5175c3786c244f8b689854db24c9e79b1c6a084f (diff) | |
| download | linux-3.10-42952231c6a8623117ee3cc89c82d382dc69ca30.tar.gz linux-3.10-42952231c6a8623117ee3cc89c82d382dc69ca30.tar.bz2 linux-3.10-42952231c6a8623117ee3cc89c82d382dc69ca30.zip | |
[TG3]: Fix set ring params tx ring size implementation
Fixes the implementation of the ethtool set ring parameters for the
tg3 transmit ring. The size of tx_pending is taken into account
before doing a netif_wake_queue. This prevents the interface from
locking up when smaller transmit ring sizes are used.
Signed-off-by: Ranjit Manomohan <ranjitm@google.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/tg3.c')
| -rw-r--r-- | drivers/net/tg3.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 327836b1014..39e483308a4 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -129,7 +129,7 @@ #define RX_JUMBO_PKT_BUF_SZ (9046 + tp->rx_offset + 64) /* minimum number of free TX descriptors required to wake up TX process */ -#define TG3_TX_WAKEUP_THRESH (TG3_TX_RING_SIZE / 4) +#define TG3_TX_WAKEUP_THRESH(tp) ((tp)->tx_pending / 4) /* number of ETHTOOL_GSTATS u64's */ #define TG3_NUM_STATS (sizeof(struct tg3_ethtool_stats)/sizeof(u64)) @@ -3075,10 +3075,10 @@ static void tg3_tx(struct tg3 *tp) smp_mb(); if (unlikely(netif_queue_stopped(tp->dev) && - (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH))) { + (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp)))) { netif_tx_lock(tp->dev); if (netif_queue_stopped(tp->dev) && - (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH)) + (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp))) netif_wake_queue(tp->dev); netif_tx_unlock(tp->dev); } @@ -3928,7 +3928,7 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev) tp->tx_prod = entry; if (unlikely(tg3_tx_avail(tp) <= (MAX_SKB_FRAGS + 1))) { netif_stop_queue(dev); - if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH) + if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp)) netif_wake_queue(tp->dev); } @@ -4143,7 +4143,7 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev) tp->tx_prod = entry; if (unlikely(tg3_tx_avail(tp) <= (MAX_SKB_FRAGS + 1))) { netif_stop_queue(dev); - if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH) + if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp)) netif_wake_queue(tp->dev); } |