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-rw-r--r--drivers/infiniband/hw/hns/hns_roce_hw_v2.c20
1 files changed, 5 insertions, 15 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index d5f3faa1627a..91990fad7185 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -1165,32 +1165,22 @@ static int hns_roce_alloc_cmq_desc(struct hns_roce_dev *hr_dev,
{
int size = ring->desc_num * sizeof(struct hns_roce_cmq_desc);
- ring->desc = kzalloc(size, GFP_KERNEL);
+ ring->desc = dma_alloc_coherent(hr_dev->dev, size,
+ &ring->desc_dma_addr, GFP_KERNEL);
if (!ring->desc)
return -ENOMEM;
- ring->desc_dma_addr = dma_map_single(hr_dev->dev, ring->desc, size,
- DMA_BIDIRECTIONAL);
- if (dma_mapping_error(hr_dev->dev, ring->desc_dma_addr)) {
- ring->desc_dma_addr = 0;
- kfree(ring->desc);
- ring->desc = NULL;
-
- return -ENOMEM;
- }
-
return 0;
}
static void hns_roce_free_cmq_desc(struct hns_roce_dev *hr_dev,
struct hns_roce_v2_cmq_ring *ring)
{
- dma_unmap_single(hr_dev->dev, ring->desc_dma_addr,
- ring->desc_num * sizeof(struct hns_roce_cmq_desc),
- DMA_BIDIRECTIONAL);
+ dma_free_coherent(hr_dev->dev,
+ ring->desc_num * sizeof(struct hns_roce_cmq_desc),
+ ring->desc, ring->desc_dma_addr);
ring->desc_dma_addr = 0;
- kfree(ring->desc);
}
static int init_csq(struct hns_roce_dev *hr_dev,