[PATCH] spidernet: performance optimizations
Performance optimizations, changes in these areas:
- RX and TX checksum offload
- correct maximum MTU
- don't use TX interrupts anymore, use a timer instead
- remove some superfluous barriers
- improve RX RAM full handling
From: Utz Bacher <utz.bacher@de.ibm.com>
Signed-off-by: Jens Osterkamp <jens.osterkamp@de.ibm.com>
Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/net/spider_net_ethtool.c b/drivers/net/spider_net_ethtool.c
index d42e60b..a5bb0b76 100644
--- a/drivers/net/spider_net_ethtool.c
+++ b/drivers/net/spider_net_ethtool.c
@@ -113,6 +113,23 @@
return 0;
}
+static uint32_t
+spider_net_ethtool_get_tx_csum(struct net_device *netdev)
+{
+ return (netdev->features & NETIF_F_HW_CSUM) != 0;
+}
+
+static int
+spider_net_ethtool_set_tx_csum(struct net_device *netdev, uint32_t data)
+{
+ if (data)
+ netdev->features |= NETIF_F_HW_CSUM;
+ else
+ netdev->features &= ~NETIF_F_HW_CSUM;
+
+ return 0;
+}
+
struct ethtool_ops spider_net_ethtool_ops = {
.get_settings = spider_net_ethtool_get_settings,
.get_drvinfo = spider_net_ethtool_get_drvinfo,
@@ -122,5 +139,7 @@
.nway_reset = spider_net_ethtool_nway_reset,
.get_rx_csum = spider_net_ethtool_get_rx_csum,
.set_rx_csum = spider_net_ethtool_set_rx_csum,
+ .get_tx_csum = spider_net_ethtool_get_tx_csum,
+ .set_tx_csum = spider_net_ethtool_set_tx_csum,
};