/* free desc along with its attached buffer */
static void hns3_free_desc(struct hns3_enet_ring *ring)
{
+ int size = ring->desc_num * sizeof(ring->desc[0]);
+
hns3_free_buffers(ring);
- dma_unmap_single(ring_to_dev(ring), ring->desc_dma_addr,
- ring->desc_num * sizeof(ring->desc[0]),
- DMA_BIDIRECTIONAL);
- ring->desc_dma_addr = 0;
- kfree(ring->desc);
- ring->desc = NULL;
+ if (ring->desc) {
+ dma_free_coherent(ring_to_dev(ring), size,
+ ring->desc, ring->desc_dma_addr);
+ ring->desc = NULL;
+ }
}
static int hns3_alloc_desc(struct hns3_enet_ring *ring)
{
int size = ring->desc_num * sizeof(ring->desc[0]);
- ring->desc = kzalloc(size, GFP_KERNEL);
+ ring->desc = dma_zalloc_coherent(ring_to_dev(ring), size,
+ &ring->desc_dma_addr,
+ GFP_KERNEL);
if (!ring->desc)
return -ENOMEM;
- ring->desc_dma_addr = dma_map_single(ring_to_dev(ring), ring->desc,
- size, DMA_BIDIRECTIONAL);
- if (dma_mapping_error(ring_to_dev(ring), ring->desc_dma_addr)) {
- ring->desc_dma_addr = 0;
- kfree(ring->desc);
- ring->desc = NULL;
- return -ENOMEM;
- }
-
return 0;
}
{
int size = ring->desc_num * sizeof(struct hclge_desc);
- ring->desc = kzalloc(size, GFP_KERNEL);
+ ring->desc = dma_zalloc_coherent(cmq_ring_to_dev(ring),
+ size, &ring->desc_dma_addr,
+ GFP_KERNEL);
if (!ring->desc)
return -ENOMEM;
- ring->desc_dma_addr = dma_map_single(cmq_ring_to_dev(ring), ring->desc,
- size, DMA_BIDIRECTIONAL);
- if (dma_mapping_error(cmq_ring_to_dev(ring), ring->desc_dma_addr)) {
- ring->desc_dma_addr = 0;
- kfree(ring->desc);
- ring->desc = NULL;
- return -ENOMEM;
- }
-
return 0;
}
static void hclge_free_cmd_desc(struct hclge_cmq_ring *ring)
{
- dma_unmap_single(cmq_ring_to_dev(ring), ring->desc_dma_addr,
- ring->desc_num * sizeof(ring->desc[0]),
- DMA_BIDIRECTIONAL);
+ int size = ring->desc_num * sizeof(struct hclge_desc);
- ring->desc_dma_addr = 0;
- kfree(ring->desc);
- ring->desc = NULL;
+ if (ring->desc) {
+ dma_free_coherent(cmq_ring_to_dev(ring), size,
+ ring->desc, ring->desc_dma_addr);
+ ring->desc = NULL;
+ }
}
static int hclge_alloc_cmd_queue(struct hclge_dev *hdev, int ring_type)
{
int size = ring->desc_num * sizeof(struct hclgevf_desc);
- ring->desc = kzalloc(size, GFP_KERNEL);
+ ring->desc = dma_zalloc_coherent(cmq_ring_to_dev(ring),
+ size, &ring->desc_dma_addr,
+ GFP_KERNEL);
if (!ring->desc)
return -ENOMEM;
- ring->desc_dma_addr = dma_map_single(cmq_ring_to_dev(ring), ring->desc,
- size, DMA_BIDIRECTIONAL);
-
- if (dma_mapping_error(cmq_ring_to_dev(ring), ring->desc_dma_addr)) {
- ring->desc_dma_addr = 0;
- kfree(ring->desc);
- ring->desc = NULL;
- return -ENOMEM;
- }
-
return 0;
}
static void hclgevf_free_cmd_desc(struct hclgevf_cmq_ring *ring)
{
- dma_unmap_single(cmq_ring_to_dev(ring), ring->desc_dma_addr,
- ring->desc_num * sizeof(ring->desc[0]),
- hclgevf_ring_to_dma_dir(ring));
+ int size = ring->desc_num * sizeof(struct hclgevf_desc);
- ring->desc_dma_addr = 0;
- kfree(ring->desc);
- ring->desc = NULL;
+ if (ring->desc) {
+ dma_free_coherent(cmq_ring_to_dev(ring), size,
+ ring->desc, ring->desc_dma_addr);
+ ring->desc = NULL;
+ }
}
static int hclgevf_init_cmd_queue(struct hclgevf_dev *hdev,