From 40ca1988e03c001747d0b4cc1b25cf38297c9f9e Mon Sep 17 00:00:00 2001 From: Eli Cohen Date: Wed, 16 Apr 2008 21:09:27 -0700 Subject: IPoIB: Add LSO support For HCAs that support TCP segmentation offload (IB_DEVICE_UD_TSO), set NETIF_F_TSO and use HW LSO to offload TCP segmentation. Signed-off-by: Eli Cohen Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_main.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'drivers/infiniband/ulp/ipoib/ipoib_main.c') diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index d87f53190a1..35a3643fb56 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -1134,14 +1134,15 @@ static struct net_device *ipoib_add_port(const char *format, kfree(device_attr); goto device_init_failed; } + priv->hca_caps = device_attr->device_cap_flags; - if (device_attr->device_cap_flags & IB_DEVICE_UD_IP_CSUM) { + kfree(device_attr); + + if (priv->hca_caps & IB_DEVICE_UD_IP_CSUM) { set_bit(IPOIB_FLAG_CSUM, &priv->flags); priv->dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM; } - kfree(device_attr); - /* * Set the full membership bit, so that we join the right * broadcast group, etc. @@ -1176,6 +1177,9 @@ static struct net_device *ipoib_add_port(const char *format, goto event_failed; } + if (priv->dev->features & NETIF_F_SG && priv->hca_caps & IB_DEVICE_UD_TSO) + priv->dev->features |= NETIF_F_TSO; + result = register_netdev(priv->dev); if (result) { printk(KERN_WARNING "%s: couldn't register ipoib port %d; error %d\n", -- cgit v1.2.3