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authorAuke Kok <auke\-jan.h.kok@intel.com>2006-11-01 08:47:36 -0800
committerJeff Garzik <jeff@garzik.org>2006-12-02 00:11:58 -0500
commit87ca4e5b8d729fc157a0a599d78ccab245fc0602 (patch)
tree69bec3c1d367d26253678e6fbd9eff184c68e7ee /drivers/net
parentb00dae7cce465323850c3e1fd3ac8b2d9229735c (diff)
e1000: FIX: enable hw TSO for IPV6
Enable TSO for IPV6. All e1000 hardware supports it. This reduces CPU utilizations by 50% when transmitting IPv6 frames. Fix symbol naming enabling ipv6 TSO. Turn off TSO6 for 10/100. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/e1000/e1000.h3
-rw-r--r--drivers/net/e1000/e1000_ethtool.c7
-rw-r--r--drivers/net/e1000/e1000_main.c19
3 files changed, 24 insertions, 5 deletions
diff --git a/drivers/net/e1000/e1000.h b/drivers/net/e1000/e1000.h
index 7ecce438d25..3f0be02e85e 100644
--- a/drivers/net/e1000/e1000.h
+++ b/drivers/net/e1000/e1000.h
@@ -59,6 +59,9 @@
#include <linux/capability.h>
#include <linux/in.h>
#include <linux/ip.h>
+#ifdef NETIF_F_TSO6
+#include <linux/ipv6.h>
+#endif
#include <linux/tcp.h>
#include <linux/udp.h>
#include <net/pkt_sched.h>
diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c
index 82d2c78e169..b9c0927d79b 100644
--- a/drivers/net/e1000/e1000_ethtool.c
+++ b/drivers/net/e1000/e1000_ethtool.c
@@ -348,6 +348,13 @@ e1000_set_tso(struct net_device *netdev, uint32_t data)
else
netdev->features &= ~NETIF_F_TSO;
+#ifdef NETIF_F_TSO6
+ if (data)
+ netdev->features |= NETIF_F_TSO6;
+ else
+ netdev->features &= ~NETIF_F_TSO6;
+#endif
+
DPRINTK(PROBE, INFO, "TSO is %s\n", data ? "Enabled" : "Disabled");
adapter->tso_force = TRUE;
return 0;
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 35d6d080522..38ee39e570e 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -844,9 +844,9 @@ e1000_probe(struct pci_dev *pdev,
(adapter->hw.mac_type != e1000_82547))
netdev->features |= NETIF_F_TSO;
-#ifdef NETIF_F_TSO_IPV6
+#ifdef NETIF_F_TSO6
if (adapter->hw.mac_type > e1000_82547_rev_2)
- netdev->features |= NETIF_F_TSO_IPV6;
+ netdev->features |= NETIF_F_TSO6;
#endif
#endif
if (pci_using_dac)
@@ -1814,8 +1814,11 @@ e1000_setup_rctl(struct e1000_adapter *adapter)
/* Configure extra packet-split registers */
rfctl = E1000_READ_REG(&adapter->hw, RFCTL);
rfctl |= E1000_RFCTL_EXTEN;
- /* disable IPv6 packet split support */
- rfctl |= E1000_RFCTL_IPV6_DIS;
+ /* disable packet split support for IPv6 extension headers,
+ * because some malformed IPv6 headers can hang the RX */
+ rfctl |= (E1000_RFCTL_IPV6_EX_DIS |
+ E1000_RFCTL_NEW_IPV6_EXT_DIS);
+
E1000_WRITE_REG(&adapter->hw, RFCTL, rfctl);
rctl |= E1000_RCTL_DTYP_PS;
@@ -2473,9 +2476,15 @@ e1000_watchdog(unsigned long data)
DPRINTK(PROBE,INFO,
"10/100 speed: disabling TSO\n");
netdev->features &= ~NETIF_F_TSO;
+#ifdef NETIF_F_TSO6
+ netdev->features &= ~NETIF_F_TSO6;
+#endif
break;
case SPEED_1000:
netdev->features |= NETIF_F_TSO;
+#ifdef NETIF_F_TSO6
+ netdev->features |= NETIF_F_TSO6;
+#endif
break;
default:
/* oops */
@@ -2610,7 +2619,7 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
0);
cmd_length = E1000_TXD_CMD_IP;
ipcse = skb->h.raw - skb->data - 1;
-#ifdef NETIF_F_TSO_IPV6
+#ifdef NETIF_F_TSO6
} else if (skb->protocol == htons(ETH_P_IPV6)) {
skb->nh.ipv6h->payload_len = 0;
skb->h.th->check =