diff options
| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2008-08-24 05:33:55 +0200 |
|---|---|---|
| committer | Lennert Buytenhek <buytenh@marvell.com> | 2008-09-05 06:33:58 +0200 |
| commit | 17cd0a59f9c34164c4f3bfe404894f5285bac112 (patch) | |
| tree | 6d35c01accd4218fb7858b55f326203fed05d571 /drivers | |
| parent | 2257e05c170561bb1168ee50205ae920008c37fb (diff) | |
| download | blackbird-op-linux-17cd0a59f9c34164c4f3bfe404894f5285bac112.tar.gz blackbird-op-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')
| -rw-r--r-- | drivers/net/mv643xx_eth.c | 25 |
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"); |
