dpaa2-eth: Map Rx buffers as bidirectional

In order to support enqueueing Rx FDs back to hardware, we need to
DMA map Rx buffers as bidirectional.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index ac4cb817ee9a506909c12591eb5386d35bc91933..c2e880bb4015f21281ba3327f39dd61bc11e3113 100644 (file)
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -87,7 +87,7 @@ static void free_rx_fd(struct dpaa2_eth_priv *priv,
                addr = dpaa2_sg_get_addr(&sgt[i]);
                sg_vaddr = dpaa2_iova_to_virt(priv->iommu_domain, addr);
                dma_unmap_single(dev, addr, DPAA2_ETH_RX_BUF_SIZE,
-                                DMA_FROM_DEVICE);
+                                DMA_BIDIRECTIONAL);
 
                skb_free_frag(sg_vaddr);
                if (dpaa2_sg_is_final(&sgt[i]))
@@ -145,7 +145,7 @@ static struct sk_buff *build_frag_skb(struct dpaa2_eth_priv *priv,
                sg_addr = dpaa2_sg_get_addr(sge);
                sg_vaddr = dpaa2_iova_to_virt(priv->iommu_domain, sg_addr);
                dma_unmap_single(dev, sg_addr, DPAA2_ETH_RX_BUF_SIZE,
-                                DMA_FROM_DEVICE);
+                                DMA_BIDIRECTIONAL);
 
                sg_length = dpaa2_sg_get_len(sge);
 
@@ -212,7 +212,7 @@ static void free_bufs(struct dpaa2_eth_priv *priv, u64 *buf_array, int count)
        for (i = 0; i < count; i++) {
                vaddr = dpaa2_iova_to_virt(priv->iommu_domain, buf_array[i]);
                dma_unmap_single(dev, buf_array[i], DPAA2_ETH_RX_BUF_SIZE,
-                                DMA_FROM_DEVICE);
+                                DMA_BIDIRECTIONAL);
                skb_free_frag(vaddr);
        }
 }
@@ -306,7 +306,7 @@ static void dpaa2_eth_rx(struct dpaa2_eth_priv *priv,
 
        vaddr = dpaa2_iova_to_virt(priv->iommu_domain, addr);
        dma_sync_single_for_cpu(dev, addr, DPAA2_ETH_RX_BUF_SIZE,
-                               DMA_FROM_DEVICE);
+                               DMA_BIDIRECTIONAL);
 
        fas = dpaa2_get_fas(vaddr, false);
        prefetch(fas);
@@ -325,13 +325,13 @@ static void dpaa2_eth_rx(struct dpaa2_eth_priv *priv,
                }
 
                dma_unmap_single(dev, addr, DPAA2_ETH_RX_BUF_SIZE,
-                                DMA_FROM_DEVICE);
+                                DMA_BIDIRECTIONAL);
                skb = build_linear_skb(ch, fd, vaddr);
        } else if (fd_format == dpaa2_fd_sg) {
                WARN_ON(priv->xdp_prog);
 
                dma_unmap_single(dev, addr, DPAA2_ETH_RX_BUF_SIZE,
-                                DMA_FROM_DEVICE);
+                                DMA_BIDIRECTIONAL);
                skb = build_frag_skb(priv, ch, buf_data);
                skb_free_frag(vaddr);
                percpu_extras->rx_sg_frames++;
@@ -865,7 +865,7 @@ static int add_bufs(struct dpaa2_eth_priv *priv,
                buf = PTR_ALIGN(buf, priv->rx_buf_align);
 
                addr = dma_map_single(dev, buf, DPAA2_ETH_RX_BUF_SIZE,
-                                     DMA_FROM_DEVICE);
+                                     DMA_BIDIRECTIONAL);
                if (unlikely(dma_mapping_error(dev, addr)))
                        goto err_map;