diff options
| author | Auke Kok <auke\-jan.h.kok@intel.com> | 2006-11-01 08:47:36 -0800 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-12-02 00:11:58 -0500 |
| commit | 87ca4e5b8d729fc157a0a599d78ccab245fc0602 (patch) | |
| tree | 69bec3c1d367d26253678e6fbd9eff184c68e7ee | |
| parent | b00dae7cce465323850c3e1fd3ac8b2d9229735c (diff) | |
| download | blackbird-op-linux-87ca4e5b8d729fc157a0a599d78ccab245fc0602.tar.gz blackbird-op-linux-87ca4e5b8d729fc157a0a599d78ccab245fc0602.zip | |
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>
| -rw-r--r-- | drivers/net/e1000/e1000.h | 3 | ||||
| -rw-r--r-- | drivers/net/e1000/e1000_ethtool.c | 7 | ||||
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 19 |
3 files changed, 24 insertions, 5 deletions
diff --git a/drivers/net/e1000/e1000.h b/drivers/net/e1000/e1000.h index 7ecce438d258..3f0be02e85e2 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 82d2c78e1696..b9c0927d79b3 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 35d6d080522f..38ee39e570ea 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 = |
