diff options
| author | Eli Cohen <eli@mellanox.co.il> | 2008-01-30 18:30:53 +0200 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-02-08 14:32:37 -0800 |
| commit | 7143740d26098aca84ecc7376ccfe2c58fd0412e (patch) | |
| tree | c29029045ebdbe197f94ead3e1d6610f498f1880 /drivers/infiniband/ulp/ipoib/ipoib_cm.c | |
| parent | eb14032f9eb595621270f3269f40094adb3144e8 (diff) | |
| download | blackbird-op-linux-7143740d26098aca84ecc7376ccfe2c58fd0412e.tar.gz blackbird-op-linux-7143740d26098aca84ecc7376ccfe2c58fd0412e.zip | |
IPoIB: Add send gather support
This patch acts as a preparation for using checksum offload for IB
devices capable of inserting/verifying checksum in IP packets. The
patch does not actaully turn on NETIF_F_SG - we defer that to the
patches adding checksum offload capabilities.
We only add support for send gathers for datagram mode, since existing
HW does not support checksum offload on connected QPs.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
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 | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index 1818f958c250..7dd2ec473d24 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -634,8 +634,8 @@ static inline int post_send(struct ipoib_dev_priv *priv, { struct ib_send_wr *bad_wr; - priv->tx_sge.addr = addr; - priv->tx_sge.length = len; + priv->tx_sge[0].addr = addr; + priv->tx_sge[0].length = len; priv->tx_wr.wr_id = wr_id | IPOIB_OP_CM; @@ -676,7 +676,7 @@ void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_ return; } - tx_req->mapping = addr; + tx_req->mapping[0] = addr; if (unlikely(post_send(priv, tx, tx->tx_head & (ipoib_sendq_size - 1), addr, skb->len))) { @@ -715,7 +715,7 @@ void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) tx_req = &tx->tx_ring[wr_id]; - ib_dma_unmap_single(priv->ca, tx_req->mapping, tx_req->skb->len, DMA_TO_DEVICE); + ib_dma_unmap_single(priv->ca, tx_req->mapping[0], tx_req->skb->len, DMA_TO_DEVICE); /* FIXME: is this right? Shouldn't we only increment on success? */ ++dev->stats.tx_packets; @@ -1110,7 +1110,7 @@ timeout: while ((int) p->tx_tail - (int) p->tx_head < 0) { tx_req = &p->tx_ring[p->tx_tail & (ipoib_sendq_size - 1)]; - ib_dma_unmap_single(priv->ca, tx_req->mapping, tx_req->skb->len, + ib_dma_unmap_single(priv->ca, tx_req->mapping[0], tx_req->skb->len, DMA_TO_DEVICE); dev_kfree_skb_any(tx_req->skb); ++p->tx_tail; |
