commit 11f1a52b87eaf830bd03d4e01d563437c30f7728
author Arnd Bergmann <arnd@arndb.de> Thu Jan 12 17:16:44 2006 -0500
committer Jeff Garzik <jgarzik@pobox.com> Tue Jan 17 07:25:01 2006 -0500
tree f251162b093f1ac7153d17de8d046f16f3e2e17e
parent 8e0a613bf61ccaab376877d7c2ed50315b8ca6d7

[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>

drivers/net/spider_net_ethtool.c

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,
 };