Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6371ea3d48e17d4638a91a4a1e0364e56204e418
Commit: 6371ea3d48e17d4638a91a4a1e0364e56204e418
Parent: 1d426d6418d1914b592c9c307c02e488d9182fa8
Author: Michael S. Tsirkin <[EMAIL PROTECTED]>
AuthorDate: Tue Apr 10 18:32:42 2007 +0300
Committer: Roland Dreier <[EMAIL PROTECTED]>
CommitDate: Tue Apr 10 08:58:30 2007 -0700
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 <[EMAIL PROTECTED]>
Signed-off-by: Roland Dreier <[EMAIL PROTECTED]>
---
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;
}
-
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