ramips_eth: pass 'raeth_priv' struct directly to dma specific functions

SVN-Revision: 19442

diff --git a/target/linux/ramips/files/drivers/net/ramips.c b/target/linux/ramips/files/drivers/net/ramips.c
index df6829739f46e875188f80a81581630cfe73578f..1fd9180a39928cd0b18cedf62dd6b6115f216562 100644 (file)
--- a/target/linux/ramips/files/drivers/net/ramips.c
+++ b/target/linux/ramips/files/drivers/net/ramips.c
@@ -52,57 +52,55 @@ ramips_fe_rr(unsigned reg)
 }
 
 static void
-ramips_cleanup_dma(struct net_device *dev)
+ramips_cleanup_dma(struct raeth_priv *re)
 {
-       struct raeth_priv *priv = netdev_priv(dev);
        int i;
 
        for (i = 0; i < NUM_RX_DESC; i++)
-               if (priv->rx_skb[i])
-                       dev_kfree_skb_any(priv->rx_skb[i]);
+               if (re->rx_skb[i])
+                       dev_kfree_skb_any(re->rx_skb[i]);
 
-       if (priv->rx)
+       if (re->rx)
                dma_free_coherent(NULL,
                                  NUM_RX_DESC * sizeof(struct ramips_rx_dma),
-                                 priv->rx, priv->phy_rx);
+                                 re->rx, re->phy_rx);
 
-       if (priv->tx)
+       if (re->tx)
                dma_free_coherent(NULL,
                                  NUM_TX_DESC * sizeof(struct ramips_tx_dma),
-                                 priv->tx, priv->phy_tx);
+                                 re->tx, re->phy_tx);
 }
 
 static int
-ramips_alloc_dma(struct net_device *dev)
+ramips_alloc_dma(struct raeth_priv *re)
 {
-       struct raeth_priv *priv = netdev_priv(dev);
        int err = -ENOMEM;
        int i;
 
-       priv->skb_free_idx = 0;
+       re->skb_free_idx = 0;
 
        /* setup tx ring */
-       priv->tx = dma_alloc_coherent(NULL,
-                                     NUM_TX_DESC * sizeof(struct ramips_tx_dma),
-                                     &priv->phy_tx, GFP_ATOMIC);
-       if (!priv->tx)
+       re->tx = dma_alloc_coherent(NULL,
+                                   NUM_TX_DESC * sizeof(struct ramips_tx_dma),
+                                   &re->phy_tx, GFP_ATOMIC);
+       if (!re->tx)
                goto err_cleanup;
 
-       memset(priv->tx, 0, NUM_TX_DESC * sizeof(struct ramips_tx_dma));
+       memset(re->tx, 0, NUM_TX_DESC * sizeof(struct ramips_tx_dma));
        for (i = 0; i < NUM_TX_DESC; i++) {
-               priv->tx[i].txd2 |= TX_DMA_LSO | TX_DMA_DONE;
-               priv->tx[i].txd4 &= (TX_DMA_QN_MASK | TX_DMA_PN_MASK);
-               priv->tx[i].txd4 |= TX_DMA_QN(3) | TX_DMA_PN(1);
+               re->tx[i].txd2 |= TX_DMA_LSO | TX_DMA_DONE;
+               re->tx[i].txd4 &= (TX_DMA_QN_MASK | TX_DMA_PN_MASK);
+               re->tx[i].txd4 |= TX_DMA_QN(3) | TX_DMA_PN(1);
        }
 
        /* setup rx ring */
-       priv->rx = dma_alloc_coherent(NULL,
-                                     NUM_RX_DESC * sizeof(struct ramips_rx_dma),
-                                     &priv->phy_rx, GFP_ATOMIC);
-       if (!priv->rx)
+       re->rx = dma_alloc_coherent(NULL,
+                                   NUM_RX_DESC * sizeof(struct ramips_rx_dma),
+                                   &re->phy_rx, GFP_ATOMIC);
+       if (!re->rx)
                goto err_cleanup;
 
-       memset(priv->rx, 0, sizeof(struct ramips_rx_dma) * NUM_RX_DESC);
+       memset(re->rx, 0, sizeof(struct ramips_rx_dma) * NUM_RX_DESC);
        for (i = 0; i < NUM_RX_DESC; i++) {
                struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_LENGTH + 2);
 
@@ -110,32 +108,30 @@ ramips_alloc_dma(struct net_device *dev)
                        goto err_cleanup;
 
                skb_reserve(new_skb, 2);
-               priv->rx[i].rxd1 = dma_map_single(NULL,
-                                                 skb_put(new_skb, 2),
-                                                 MAX_RX_LENGTH + 2,
-                                                 DMA_FROM_DEVICE);
-               priv->rx[i].rxd2 |= RX_DMA_LSO;
-               priv->rx_skb[i] = new_skb;
+               re->rx[i].rxd1 = dma_map_single(NULL,
+                                               skb_put(new_skb, 2),
+                                               MAX_RX_LENGTH + 2,
+                                               DMA_FROM_DEVICE);
+               re->rx[i].rxd2 |= RX_DMA_LSO;
+               re->rx_skb[i] = new_skb;
        }
 
        return 0;
 
  err_cleanup:
-       ramips_cleanup_dma(dev);
+       ramips_cleanup_dma(re);
        return err;
 }
 
 static void
-ramips_setup_dma(struct net_device *dev)
+ramips_setup_dma(struct raeth_priv *re)
 {
-       struct raeth_priv *priv = netdev_priv(dev);
-
-       ramips_fe_wr(phys_to_bus(priv->phy_tx), RAMIPS_TX_BASE_PTR0);
+       ramips_fe_wr(phys_to_bus(re->phy_tx), RAMIPS_TX_BASE_PTR0);
        ramips_fe_wr(NUM_TX_DESC, RAMIPS_TX_MAX_CNT0);
        ramips_fe_wr(0, RAMIPS_TX_CTX_IDX0);
        ramips_fe_wr(RAMIPS_PST_DTX_IDX0, RAMIPS_PDMA_RST_CFG);
 
-       ramips_fe_wr(phys_to_bus(priv->phy_rx), RAMIPS_RX_BASE_PTR0);
+       ramips_fe_wr(phys_to_bus(re->phy_rx), RAMIPS_RX_BASE_PTR0);
        ramips_fe_wr(NUM_RX_DESC, RAMIPS_RX_MAX_CNT0);
        ramips_fe_wr((NUM_RX_DESC - 1), RAMIPS_RX_CALC_IDX0);
        ramips_fe_wr(RAMIPS_PST_DRX_IDX0, RAMIPS_PDMA_RST_CFG);
@@ -314,11 +310,11 @@ ramips_eth_open(struct net_device *dev)
        if (err)
                return err;
 
-       err = ramips_alloc_dma(dev);
+       err = ramips_alloc_dma(priv);
        if (err)
                goto err_free_irq;
 
-       ramips_setup_dma(dev);
+       ramips_setup_dma(priv);
        ramips_fe_wr((ramips_fe_rr(RAMIPS_PDMA_GLO_CFG) & 0xff) |
                (RAMIPS_TX_WB_DDONE | RAMIPS_RX_DMA_EN |
                RAMIPS_TX_DMA_EN | RAMIPS_PDMA_SIZE_4DWORDS),
@@ -364,7 +360,7 @@ ramips_eth_stop(struct net_device *dev)
        netif_stop_queue(dev);
        tasklet_kill(&priv->tx_housekeeping_tasklet);
        tasklet_kill(&priv->rx_tasklet);
-       ramips_cleanup_dma(dev);
+       ramips_cleanup_dma(priv);
        printk(KERN_DEBUG "ramips_eth: stopped\n");
        return 0;
 }