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authorRoland Dreier <rolandd@cisco.com>2007-02-16 13:57:33 -0800
committerRoland Dreier <rolandd@cisco.com>2007-02-16 13:57:33 -0800
commit11282b32a4ed7bb5fc390c83a1d6b9bc8017882c (patch)
tree241e453062f9acae34fc00625097491c3e5f83e5 /drivers/infiniband
parentfc89afce349a70f73d9c0b6d91a15c4913f071a0 (diff)
IB/mthca: Fix allocation of ICM chunks in coherent memory
The change to allow allocating ICM chunks from coherent memory did not increment the count of sg entries properly, so a chunk that required more than allocation would not be mapped properly by the HCA. Fix this by adding the missing increment of chunk->nsg. Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_memfree.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c
index 0b9d053a599..48f7c65e9ae 100644
--- a/drivers/infiniband/hw/mthca/mthca_memfree.c
+++ b/drivers/infiniband/hw/mthca/mthca_memfree.c
@@ -175,7 +175,9 @@ struct mthca_icm *mthca_alloc_icm(struct mthca_dev *dev, int npages,
if (!ret) {
++chunk->npages;
- if (!coherent && chunk->npages == MTHCA_ICM_CHUNK_LEN) {
+ if (coherent)
+ ++chunk->nsg;
+ else if (chunk->npages == MTHCA_ICM_CHUNK_LEN) {
chunk->nsg = pci_map_sg(dev->pdev, chunk->mem,
chunk->npages,
PCI_DMA_BIDIRECTIONAL);