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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>
This commit is contained in:
Ioana Ciocoi Radulescu 2018-11-26 16:27:32 +00:00 committed by David S. Miller
parent 5d39dc2148
commit 18c2e770e6
1 changed files with 7 additions and 7 deletions
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14
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
View File

@ -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;