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authorLennert Buytenhek <buytenh@wantstofly.org>2008-08-24 05:33:55 +0200
committerLennert Buytenhek <buytenh@marvell.com>2008-09-05 06:33:58 +0200
commit17cd0a59f9c34164c4f3bfe404894f5285bac112 (patch)
tree6d35c01accd4218fb7858b55f326203fed05d571 /drivers/net/mv643xx_eth.c
parentmv643xx_eth: get rid of receive-side locking (diff)
downloadlinux-17cd0a59f9c34164c4f3bfe404894f5285bac112.tar.xz
linux-17cd0a59f9c34164c4f3bfe404894f5285bac112.zip
mv643xx_eth: get rid of compile-time configurable transmit checksumming
Get rid of the mv643xx_eth-internal MV643XX_ETH_CHECKSUM_OFFLOAD_TX compile-time option. Using transmit checksumming is the sane default, and anyone wanting to disable it should use ethtool(8) instead of recompiling their kernels. Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Diffstat (limited to 'drivers/net/mv643xx_eth.c')
-rw-r--r--drivers/net/mv643xx_eth.c25
1 files changed, 3 insertions, 22 deletions
diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index 3831a8bffbd6..53cfd01b405d 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -57,15 +57,8 @@
static char mv643xx_eth_driver_name[] = "mv643xx_eth";
static char mv643xx_eth_driver_version[] = "1.3";
-#define MV643XX_ETH_CHECKSUM_OFFLOAD_TX
#define MV643XX_ETH_TX_FAST_REFILL
-#ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX
-#define MAX_DESCS_PER_SKB (MAX_SKB_FRAGS + 1)
-#else
-#define MAX_DESCS_PER_SKB 1
-#endif
-
/*
* Registers shared between all ports.
*/
@@ -464,7 +457,7 @@ static void __txq_maybe_wake(struct tx_queue *txq)
*/
BUG_ON(txq->index != mp->txq_primary);
- if (txq->tx_ring_size - txq->tx_desc_count >= MAX_DESCS_PER_SKB)
+ if (txq->tx_ring_size - txq->tx_desc_count >= MAX_SKB_FRAGS + 1)
netif_wake_queue(mp->dev);
}
@@ -855,7 +848,7 @@ static int mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev)
txq = mp->txq + mp->txq_primary;
- if (txq->tx_ring_size - txq->tx_desc_count < MAX_DESCS_PER_SKB) {
+ if (txq->tx_ring_size - txq->tx_desc_count < MAX_SKB_FRAGS + 1) {
spin_unlock_irqrestore(&mp->lock, flags);
if (txq->index == mp->txq_primary && net_ratelimit())
dev_printk(KERN_ERR, &dev->dev,
@@ -873,7 +866,7 @@ static int mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev)
int entries_left;
entries_left = txq->tx_ring_size - txq->tx_desc_count;
- if (entries_left < MAX_DESCS_PER_SKB)
+ if (entries_left < MAX_SKB_FRAGS + 1)
netif_stop_queue(dev);
}
@@ -2656,14 +2649,8 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
dev->watchdog_timeo = 2 * HZ;
dev->base_addr = 0;
-#ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX
- /*
- * Zero copy can only work if we use Discovery II memory. Else, we will
- * have to map the buffers to ISA memory which is only 16 MB
- */
dev->features = NETIF_F_SG | NETIF_F_IP_CSUM;
dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM;
-#endif
SET_NETDEV_DEV(dev, &pdev->dev);
@@ -2677,12 +2664,6 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %s\n",
mp->port_num, print_mac(mac, dev->dev_addr));
- if (dev->features & NETIF_F_SG)
- dev_printk(KERN_NOTICE, &dev->dev, "scatter/gather enabled\n");
-
- if (dev->features & NETIF_F_IP_CSUM)
- dev_printk(KERN_NOTICE, &dev->dev, "tx checksum offload\n");
-
if (mp->tx_desc_sram_size > 0)
dev_printk(KERN_NOTICE, &dev->dev, "configured with sram\n");