diff options
| author | Steve Wise <swise@opengridcomputing.com> | 2006-10-27 17:28:35 -0500 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-10-30 20:52:52 -0800 |
| commit | 8de94ce19dd3c6fc6e9d9658da11cf3d76841ee5 (patch) | |
| tree | a9dfc1ed6ebee7112a593cc6505563295185ace7 /drivers/infiniband/hw/amso1100/c2_cq.c | |
| parent | 04d03bc576f244bfa9692452aab83fa357ac0d57 (diff) | |
| download | lwn-8de94ce19dd3c6fc6e9d9658da11cf3d76841ee5.tar.gz lwn-8de94ce19dd3c6fc6e9d9658da11cf3d76841ee5.zip | |
IB/amso1100: Use dma_alloc_coherent() instead of kmalloc/dma_map_single
The Ammasso driver needs to use dma_alloc_coherent() for
allocating memory that will be used by the HW for dma.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/amso1100/c2_cq.c')
| -rw-r--r-- | drivers/infiniband/hw/amso1100/c2_cq.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/drivers/infiniband/hw/amso1100/c2_cq.c b/drivers/infiniband/hw/amso1100/c2_cq.c index 9d7bcc5ade93..05c9154d46f4 100644 --- a/drivers/infiniband/hw/amso1100/c2_cq.c +++ b/drivers/infiniband/hw/amso1100/c2_cq.c @@ -246,20 +246,17 @@ int c2_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify notify) static void c2_free_cq_buf(struct c2_dev *c2dev, struct c2_mq *mq) { - - dma_unmap_single(c2dev->ibdev.dma_device, pci_unmap_addr(mq, mapping), - mq->q_size * mq->msg_size, DMA_FROM_DEVICE); - free_pages((unsigned long) mq->msg_pool.host, - get_order(mq->q_size * mq->msg_size)); + dma_free_coherent(&c2dev->pcidev->dev, mq->q_size * mq->msg_size, + mq->msg_pool.host, pci_unmap_addr(mq, mapping)); } static int c2_alloc_cq_buf(struct c2_dev *c2dev, struct c2_mq *mq, int q_size, int msg_size) { - unsigned long pool_start; + u8 *pool_start; - pool_start = __get_free_pages(GFP_KERNEL, - get_order(q_size * msg_size)); + pool_start = dma_alloc_coherent(&c2dev->pcidev->dev, q_size * msg_size, + &mq->host_dma, GFP_KERNEL); if (!pool_start) return -ENOMEM; @@ -267,13 +264,10 @@ static int c2_alloc_cq_buf(struct c2_dev *c2dev, struct c2_mq *mq, int q_size, 0, /* index (currently unknown) */ q_size, msg_size, - (u8 *) pool_start, + pool_start, NULL, /* peer (currently unknown) */ C2_MQ_HOST_TARGET); - mq->host_dma = dma_map_single(c2dev->ibdev.dma_device, - (void *)pool_start, - q_size * msg_size, DMA_FROM_DEVICE); pci_unmap_addr_set(mq, mapping, mq->host_dma); return 0; |