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gianfar: pass the proper dev to DMA ops
We need to be passing the of_platform device struct into the DMA ops as its the one that has the archdata setup to know which low-level DMA ops we should be using (not the net_device one). This isn't an issue until we expect the archdata to be setup correctly. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
4b704d59d6
commit
4826857f1b
2 changed files with 20 additions and 17 deletions
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@ -365,8 +365,10 @@ static int gfar_probe(struct of_device *ofdev,
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return -ENOMEM;
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priv = netdev_priv(dev);
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priv->dev = dev;
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priv->ndev = dev;
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priv->ofdev = ofdev;
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priv->node = ofdev->node;
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SET_NETDEV_DEV(dev, &ofdev->dev);
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err = gfar_of_init(dev);
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@ -538,7 +540,7 @@ static int gfar_remove(struct of_device *ofdev)
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dev_set_drvdata(&ofdev->dev, NULL);
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iounmap(priv->regs);
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free_netdev(priv->dev);
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free_netdev(priv->ndev);
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return 0;
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}
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@ -870,7 +872,7 @@ void stop_gfar(struct net_device *dev)
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free_skb_resources(priv);
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dma_free_coherent(&dev->dev,
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dma_free_coherent(&priv->ofdev->dev,
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sizeof(struct txbd8)*priv->tx_ring_size
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+ sizeof(struct rxbd8)*priv->rx_ring_size,
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priv->tx_bd_base,
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@ -892,12 +894,12 @@ static void free_skb_resources(struct gfar_private *priv)
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if (!priv->tx_skbuff[i])
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continue;
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dma_unmap_single(&priv->dev->dev, txbdp->bufPtr,
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dma_unmap_single(&priv->ofdev->dev, txbdp->bufPtr,
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txbdp->length, DMA_TO_DEVICE);
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txbdp->lstatus = 0;
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for (j = 0; j < skb_shinfo(priv->tx_skbuff[i])->nr_frags; j++) {
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txbdp++;
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dma_unmap_page(&priv->dev->dev, txbdp->bufPtr,
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dma_unmap_page(&priv->ofdev->dev, txbdp->bufPtr,
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txbdp->length, DMA_TO_DEVICE);
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}
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txbdp++;
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@ -914,7 +916,7 @@ static void free_skb_resources(struct gfar_private *priv)
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if(priv->rx_skbuff != NULL) {
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for (i = 0; i < priv->rx_ring_size; i++) {
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if (priv->rx_skbuff[i]) {
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dma_unmap_single(&priv->dev->dev, rxbdp->bufPtr,
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dma_unmap_single(&priv->ofdev->dev, rxbdp->bufPtr,
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priv->rx_buffer_size,
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DMA_FROM_DEVICE);
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@ -980,7 +982,7 @@ int startup_gfar(struct net_device *dev)
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gfar_write(®s->imask, IMASK_INIT_CLEAR);
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/* Allocate memory for the buffer descriptors */
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vaddr = (unsigned long) dma_alloc_coherent(&dev->dev,
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vaddr = (unsigned long) dma_alloc_coherent(&priv->ofdev->dev,
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sizeof (struct txbd8) * priv->tx_ring_size +
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sizeof (struct rxbd8) * priv->rx_ring_size,
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&addr, GFP_KERNEL);
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@ -1192,7 +1194,7 @@ int startup_gfar(struct net_device *dev)
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rx_skb_fail:
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free_skb_resources(priv);
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tx_skb_fail:
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dma_free_coherent(&dev->dev,
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dma_free_coherent(&priv->ofdev->dev,
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sizeof(struct txbd8)*priv->tx_ring_size
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+ sizeof(struct rxbd8)*priv->rx_ring_size,
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priv->tx_bd_base,
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@ -1345,7 +1347,7 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
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if (i == nr_frags - 1)
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lstatus |= BD_LFLAG(TXBD_LAST | TXBD_INTERRUPT);
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bufaddr = dma_map_page(&dev->dev,
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bufaddr = dma_map_page(&priv->ofdev->dev,
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skb_shinfo(skb)->frags[i].page,
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skb_shinfo(skb)->frags[i].page_offset,
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length,
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@ -1377,7 +1379,7 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
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/* setup the TxBD length and buffer pointer for the first BD */
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priv->tx_skbuff[priv->skb_curtx] = skb;
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txbdp_start->bufPtr = dma_map_single(&dev->dev, skb->data,
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txbdp_start->bufPtr = dma_map_single(&priv->ofdev->dev, skb->data,
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skb_headlen(skb), DMA_TO_DEVICE);
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lstatus |= BD_LFLAG(TXBD_CRC | TXBD_READY) | skb_headlen(skb);
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@ -1563,7 +1565,7 @@ static void gfar_reset_task(struct work_struct *work)
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{
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struct gfar_private *priv = container_of(work, struct gfar_private,
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reset_task);
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struct net_device *dev = priv->dev;
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struct net_device *dev = priv->ndev;
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if (dev->flags & IFF_UP) {
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stop_gfar(dev);
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@ -1610,7 +1612,7 @@ static int gfar_clean_tx_ring(struct net_device *dev)
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(lstatus & BD_LENGTH_MASK))
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break;
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dma_unmap_single(&dev->dev,
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dma_unmap_single(&priv->ofdev->dev,
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bdp->bufPtr,
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bdp->length,
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DMA_TO_DEVICE);
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@ -1619,7 +1621,7 @@ static int gfar_clean_tx_ring(struct net_device *dev)
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bdp = next_txbd(bdp, base, tx_ring_size);
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for (i = 0; i < frags; i++) {
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dma_unmap_page(&dev->dev,
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dma_unmap_page(&priv->ofdev->dev,
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bdp->bufPtr,
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bdp->length,
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DMA_TO_DEVICE);
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@ -1696,7 +1698,7 @@ static void gfar_new_rxbdp(struct net_device *dev, struct rxbd8 *bdp,
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struct gfar_private *priv = netdev_priv(dev);
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u32 lstatus;
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bdp->bufPtr = dma_map_single(&dev->dev, skb->data,
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bdp->bufPtr = dma_map_single(&priv->ofdev->dev, skb->data,
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priv->rx_buffer_size, DMA_FROM_DEVICE);
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lstatus = BD_LFLAG(RXBD_EMPTY | RXBD_INTERRUPT);
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@ -1856,7 +1858,7 @@ int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit)
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skb = priv->rx_skbuff[priv->skb_currx];
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dma_unmap_single(&priv->dev->dev, bdp->bufPtr,
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dma_unmap_single(&priv->ofdev->dev, bdp->bufPtr,
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priv->rx_buffer_size, DMA_FROM_DEVICE);
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/* We drop the frame if we failed to allocate a new buffer */
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@ -1916,7 +1918,7 @@ int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit)
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static int gfar_poll(struct napi_struct *napi, int budget)
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{
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struct gfar_private *priv = container_of(napi, struct gfar_private, napi);
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struct net_device *dev = priv->dev;
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struct net_device *dev = priv->ndev;
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int tx_cleaned = 0;
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int rx_cleaned = 0;
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unsigned long flags;
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@ -738,7 +738,8 @@ struct gfar_private {
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spinlock_t rxlock;
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struct device_node *node;
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struct net_device *dev;
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struct net_device *ndev;
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struct of_device *ofdev;
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struct napi_struct napi;
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/* skb array and index */
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