diff options
| author | Anton Vorontsov <avorontsov@ru.mvista.com> | 2009-10-12 06:00:36 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-10-12 23:54:03 -0700 |
| commit | 32c513bca062f6c04b902d09c716fea205671e23 (patch) | |
| tree | 1e0bc56d3d0b3c5b8c544c6a355ebbe3b33ae78a | |
| parent | 826aa4a05669a46e435f65db901186e42bb43d8d (diff) | |
| download | op-kernel-dev-32c513bca062f6c04b902d09c716fea205671e23.zip op-kernel-dev-32c513bca062f6c04b902d09c716fea205671e23.tar.gz | |
gianfar: Move tbase/rbase initialization to gfar_init_mac()
For hibernation we want to call gfar_init_mac() without need to
free/allocate_skb_resources sequence, so save the DMA address into a
private struct, and move tbase/rbase initialization to gfar_init_mac().
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/gianfar.c | 17 | ||||
| -rw-r--r-- | drivers/net/gianfar.h | 1 |
2 files changed, 9 insertions, 9 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index c873554..068f9a2 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -151,17 +151,15 @@ static int gfar_alloc_skb_resources(struct net_device *ndev) { struct txbd8 *txbdp; struct rxbd8 *rxbdp; - dma_addr_t addr = 0; void *vaddr; int i; struct gfar_private *priv = netdev_priv(ndev); struct device *dev = &priv->ofdev->dev; - struct gfar __iomem *regs = priv->regs; /* Allocate memory for the buffer descriptors */ vaddr = dma_alloc_coherent(dev, sizeof(*txbdp) * priv->tx_ring_size + sizeof(*rxbdp) * priv->rx_ring_size, - &addr, GFP_KERNEL); + &priv->tx_bd_dma_base, GFP_KERNEL); if (!vaddr) { if (netif_msg_ifup(priv)) pr_err("%s: Could not allocate buffer descriptors!\n", @@ -171,14 +169,9 @@ static int gfar_alloc_skb_resources(struct net_device *ndev) priv->tx_bd_base = vaddr; - /* enet DMA only understands physical addresses */ - gfar_write(®s->tbase0, addr); - /* Start the rx descriptor ring where the tx ring leaves off */ - addr = addr + sizeof(*txbdp) * priv->tx_ring_size; vaddr = vaddr + sizeof(*txbdp) * priv->tx_ring_size; priv->rx_bd_base = vaddr; - gfar_write(®s->rbase0, addr); /* Setup the skbuff rings */ priv->tx_skbuff = kmalloc(sizeof(*priv->tx_skbuff) * @@ -256,6 +249,12 @@ static void gfar_init_mac(struct net_device *ndev) u32 tctrl = 0; u32 attrs = 0; + /* enet DMA only understands physical addresses */ + gfar_write(®s->tbase0, priv->tx_bd_dma_base); + gfar_write(®s->rbase0, priv->tx_bd_dma_base + + sizeof(*priv->tx_bd_base) * + priv->tx_ring_size); + /* Configure the coalescing support */ gfar_write(®s->txic, 0); if (priv->txcoalescing) @@ -1060,7 +1059,7 @@ skip_rx_skbuff: dma_free_coherent(dev, sizeof(*txbdp) * priv->tx_ring_size + sizeof(*rxbdp) * priv->rx_ring_size, - priv->tx_bd_base, gfar_read(&priv->regs->tbase0)); + priv->tx_bd_base, priv->tx_bd_dma_base); } void gfar_start(struct net_device *dev) diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h index 2cd9433..05732fa 100644 --- a/drivers/net/gianfar.h +++ b/drivers/net/gianfar.h @@ -726,6 +726,7 @@ struct gfar_private { unsigned long txic; /* Buffer descriptor pointers */ + dma_addr_t tx_bd_dma_base; struct txbd8 *tx_bd_base; /* First tx buffer descriptor */ struct txbd8 *cur_tx; /* Next free ring entry */ struct txbd8 *dirty_tx; /* First buffer in line |
