diff options
| author | Eli Cohen <eli@dev.mellanox.co.il> | 2008-04-16 21:01:10 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-04-16 21:01:10 -0700 |
| commit | 6046136c742e32d5e6431cdcd8957638d1816821 (patch) | |
| tree | 512a0165e982e5bdf93ba0732c4a52b01c84317b /drivers/infiniband/ulp/ipoib/ipoib_cm.c | |
| parent | 3371836383d63b627b228875f5ac63023cbf11d2 (diff) | |
IPoIB: Use checksum offload support if available
For HCAs that support checksum offload (ie that set IB_DEVICE_UD_IP_CSUM
in the device capabilities flags), have IPoIB set NETIF_F_IP_CSUM and
use the HCA to generate and verify IP checksums.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_cm.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_cm.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index 2490b2d79db..edf63dc0afe 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -1383,6 +1383,10 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr, set_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); ipoib_warn(priv, "enabling connected mode " "will cause multicast packet drops\n"); + + dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_SG); + priv->tx_wr.send_flags &= ~IB_SEND_IP_CSUM; + ipoib_flush_paths(dev); return count; } @@ -1391,6 +1395,10 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr, clear_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); dev->mtu = min(priv->mcast_mtu, dev->mtu); ipoib_flush_paths(dev); + + if (test_bit(IPOIB_FLAG_CSUM, &priv->flags)) + dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG; + return count; } |