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_ib.c | |
| parent | IB: Replace remaining __FUNCTION__ occurrences with __func__ (diff) | |
| download | linux-dev-6046136c742e32d5e6431cdcd8957638d1816821.tar.xz linux-dev-6046136c742e32d5e6431cdcd8957638d1816821.zip | |
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_ib.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_ib.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index 08c4396cf418..d13f4fb3853f 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -231,6 +231,10 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) skb->dev = dev; /* XXX get correct PACKET_ type here */ skb->pkt_type = PACKET_HOST; + + if (test_bit(IPOIB_FLAG_CSUM, &priv->flags) && likely(wc->csum_ok)) + skb->ip_summed = CHECKSUM_UNNECESSARY; + netif_receive_skb(skb); repost: @@ -442,6 +446,11 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb, return; } + if (skb->ip_summed == CHECKSUM_PARTIAL) + priv->tx_wr.send_flags |= IB_SEND_IP_CSUM; + else + priv->tx_wr.send_flags &= ~IB_SEND_IP_CSUM; + if (unlikely(post_send(priv, priv->tx_head & (ipoib_sendq_size - 1), address->ah, qpn, tx_req->mapping, skb_headlen(skb), |