diff options
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 1330820152fa..b319a766889f 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -2473,6 +2473,11 @@ static void hns3_reuse_buffer(struct hns3_enet_ring *ring, int i) ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma + ring->desc_cb[i].page_offset); ring->desc[i].rx.bd_base_info = 0; + + dma_sync_single_for_device(ring_to_dev(ring), + ring->desc_cb[i].dma + ring->desc_cb[i].page_offset, + hns3_buf_size(ring), + DMA_FROM_DEVICE); } static void hns3_nic_reclaim_desc(struct hns3_enet_ring *ring, int head, @@ -2918,6 +2923,11 @@ static int hns3_add_frag(struct hns3_enet_ring *ring) skb = ring->tail_skb; } + dma_sync_single_for_cpu(ring_to_dev(ring), + desc_cb->dma + desc_cb->page_offset, + hns3_buf_size(ring), + DMA_FROM_DEVICE); + hns3_nic_reuse_page(skb, ring->frag_num++, ring, 0, desc_cb); trace_hns3_rx_desc(ring); ring_ptr_move_fw(ring, next_to_clean); @@ -3069,9 +3079,15 @@ static int hns3_handle_rx_bd(struct hns3_enet_ring *ring) if (unlikely(!(bd_base_info & BIT(HNS3_RXD_VLD_B)))) return -ENXIO; - if (!skb) + if (!skb) { ring->va = desc_cb->buf + desc_cb->page_offset; + dma_sync_single_for_cpu(ring_to_dev(ring), + desc_cb->dma + desc_cb->page_offset, + hns3_buf_size(ring), + DMA_FROM_DEVICE); + } + /* Prefetch first cache line of first page * Idea is to cache few bytes of the header of the packet. Our L1 Cache * line size is 64B so need to prefetch twice to make it 128B. But in |