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| author | Stephen Hemminger <shemminger@osdl.org> | 2006-06-06 10:11:12 -0700 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-06-08 15:44:54 -0400 |
| commit | 9db96479b4e682b1bc3796873589db1f8d38a9d5 (patch) | |
| tree | 67e962fc0c1a1a0d7d9eb51fa6d684bb220ba38a /drivers/net/skge.c | |
| parent | d85b514fd9aa95d2089fa16dccc25863fb2a766c (diff) | |
| download | lwn-9db96479b4e682b1bc3796873589db1f8d38a9d5.tar.gz lwn-9db96479b4e682b1bc3796873589db1f8d38a9d5.zip | |
[PATCH] skge: TX low water mark definition
Consolidate all usage of ring low water mark to one value.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/skge.c')
| -rw-r--r-- | drivers/net/skge.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 55245dbaecbc..7d8e2ab80604 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -50,6 +50,7 @@ #define DEFAULT_TX_RING_SIZE 128 #define DEFAULT_RX_RING_SIZE 512 #define MAX_TX_RING_SIZE 1024 +#define TX_LOW_WATER (MAX_SKB_FRAGS + 1) #define MAX_RX_RING_SIZE 4096 #define RX_COPY_THRESHOLD 128 #define RX_BUF_SIZE 1536 @@ -401,7 +402,7 @@ static int skge_set_ring_param(struct net_device *dev, int err; if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE || - p->tx_pending < MAX_SKB_FRAGS+1 || p->tx_pending > MAX_TX_RING_SIZE) + p->tx_pending < TX_LOW_WATER || p->tx_pending > MAX_TX_RING_SIZE) return -EINVAL; skge->rx_ring.count = p->rx_pending; @@ -2394,7 +2395,7 @@ static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev) dev->name, e - ring->start, skb->len); ring->to_use = e->next; - if (skge_avail(&skge->tx_ring) <= MAX_SKB_FRAGS + 1) { + if (skge_avail(&skge->tx_ring) <= TX_LOW_WATER) { pr_debug("%s: transmit queue full\n", dev->name); netif_stop_queue(dev); } @@ -2689,7 +2690,7 @@ static void skge_tx_done(struct skge_port *skge) skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F); - if (skge_avail(&skge->tx_ring) > MAX_SKB_FRAGS + 1) + if (skge_avail(&skge->tx_ring) > TX_LOW_WATER) netif_wake_queue(skge->netdev); spin_unlock(&skge->tx_lock); |