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| author | Michael S. Tsirkin <mst@dev.mellanox.co.il> | 2007-04-10 18:32:42 +0300 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-04-10 08:58:30 -0700 |
| commit | 6371ea3d48e17d4638a91a4a1e0364e56204e418 (patch) | |
| tree | 8ef123fa72e84c1f9a1fbd6365af02802a61560d /drivers | |
| parent | 1d426d6418d1914b592c9c307c02e488d9182fa8 (diff) | |
| download | op-kernel-dev-6371ea3d48e17d4638a91a4a1e0364e56204e418.zip op-kernel-dev-6371ea3d48e17d4638a91a4a1e0364e56204e418.tar.gz | |
IPoIB/cm: Fix DMA direction typo
Receive buffers need to be mapped with DMA_FROM_DEVICE. Incorrectly
mapping with DMA_TO_DEVICE causes a hard lock on ppc64 machines with
an IOMMU.
This fixes <https://bugs.openfabrics.org/show_bug.cgi?id=431>
Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_cm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index e70492d..2b242a4 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -131,7 +131,7 @@ static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev, int id, int skb_fill_page_desc(skb, i, page, 0, PAGE_SIZE); mapping[i + 1] = ib_dma_map_page(priv->ca, skb_shinfo(skb)->frags[i].page, - 0, PAGE_SIZE, DMA_TO_DEVICE); + 0, PAGE_SIZE, DMA_FROM_DEVICE); if (unlikely(ib_dma_mapping_error(priv->ca, mapping[i + 1]))) goto partial_error; } |
