diff options
author | Patrick McHardy <kaber@trash.net> | 2010-06-15 15:31:06 (GMT) |
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committer | Patrick McHardy <kaber@trash.net> | 2010-06-15 15:31:06 (GMT) |
commit | f9181f4ffc71d7b7dd1906c9a11d51d6659220ae (patch) | |
tree | 194f22e8216a1b9ee2c0dd019142202d73a7dc87 /drivers/net/ethoc.c | |
parent | 0902b469bd25065aa0688c3cee6f11744c817e7c (diff) | |
parent | 1ab6c163dee279559e3a62d774af7e4c4c9b4c67 (diff) | |
download | linux-fsl-qoriq-f9181f4ffc71d7b7dd1906c9a11d51d6659220ae.tar.xz |
Merge branch 'master' of /repos/git/net-next-2.6
Conflicts:
include/net/netfilter/xt_rateest.h
net/bridge/br_netfilter.c
net/netfilter/nf_conntrack_core.c
Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'drivers/net/ethoc.c')
-rw-r--r-- | drivers/net/ethoc.c | 103 |
1 files changed, 44 insertions, 59 deletions
diff --git a/drivers/net/ethoc.c b/drivers/net/ethoc.c index 6ed2df1..37ce8ac 100644 --- a/drivers/net/ethoc.c +++ b/drivers/net/ethoc.c @@ -180,6 +180,7 @@ MODULE_PARM_DESC(buffer_size, "DMA buffer allocation size"); * @dty_tx: last buffer actually sent * @num_rx: number of receive buffers * @cur_rx: current receive buffer + * @vma: pointer to array of virtual memory addresses for buffers * @netdev: pointer to network device structure * @napi: NAPI structure * @stats: network device statistics @@ -203,6 +204,8 @@ struct ethoc { unsigned int num_rx; unsigned int cur_rx; + void** vma; + struct net_device *netdev; struct napi_struct napi; struct net_device_stats stats; @@ -285,18 +288,22 @@ static inline void ethoc_disable_rx_and_tx(struct ethoc *dev) ethoc_write(dev, MODER, mode); } -static int ethoc_init_ring(struct ethoc *dev) +static int ethoc_init_ring(struct ethoc *dev, void* mem_start) { struct ethoc_bd bd; int i; + void* vma; dev->cur_tx = 0; dev->dty_tx = 0; dev->cur_rx = 0; + ethoc_write(dev, TX_BD_NUM, dev->num_tx); + /* setup transmission buffers */ - bd.addr = virt_to_phys(dev->membase); + bd.addr = mem_start; bd.stat = TX_BD_IRQ | TX_BD_CRC; + vma = dev->membase; for (i = 0; i < dev->num_tx; i++) { if (i == dev->num_tx - 1) @@ -304,6 +311,9 @@ static int ethoc_init_ring(struct ethoc *dev) ethoc_write_bd(dev, i, &bd); bd.addr += ETHOC_BUFSIZ; + + dev->vma[i] = vma; + vma += ETHOC_BUFSIZ; } bd.stat = RX_BD_EMPTY | RX_BD_IRQ; @@ -314,6 +324,9 @@ static int ethoc_init_ring(struct ethoc *dev) ethoc_write_bd(dev, dev->num_tx + i, &bd); bd.addr += ETHOC_BUFSIZ; + + dev->vma[dev->num_tx + i] = vma; + vma += ETHOC_BUFSIZ; } return 0; @@ -415,7 +428,7 @@ static int ethoc_rx(struct net_device *dev, int limit) skb = netdev_alloc_skb_ip_align(dev, size); if (likely(skb)) { - void *src = phys_to_virt(bd.addr); + void *src = priv->vma[entry]; memcpy_fromio(skb_put(skb, size), src, size); skb->protocol = eth_type_trans(skb, dev); priv->stats.rx_packets++; @@ -600,8 +613,11 @@ static int ethoc_mdio_write(struct mii_bus *bus, int phy, int reg, u16 val) while (time_before(jiffies, timeout)) { u32 stat = ethoc_read(priv, MIISTATUS); - if (!(stat & MIISTATUS_BUSY)) + if (!(stat & MIISTATUS_BUSY)) { + /* reset MII command register */ + ethoc_write(priv, MIICOMMAND, 0); return 0; + } schedule(); } @@ -622,21 +638,12 @@ static int ethoc_mdio_probe(struct net_device *dev) { struct ethoc *priv = netdev_priv(dev); struct phy_device *phy; - int i; + int err; - for (i = 0; i < PHY_MAX_ADDR; i++) { - phy = priv->mdio->phy_map[i]; - if (phy) { - if (priv->phy_id != -1) { - /* attach to specified PHY */ - if (priv->phy_id == phy->addr) - break; - } else { - /* autoselect PHY if none was specified */ - if (phy->addr != 0) - break; - } - } + if (priv->phy_id != -1) { + phy = priv->mdio->phy_map[priv->phy_id]; + } else { + phy = phy_find_first(priv->mdio); } if (!phy) { @@ -644,11 +651,11 @@ static int ethoc_mdio_probe(struct net_device *dev) return -ENXIO; } - phy = phy_connect(dev, dev_name(&phy->dev), ethoc_mdio_poll, 0, + err = phy_connect_direct(dev, phy, ethoc_mdio_poll, 0, PHY_INTERFACE_MODE_GMII); - if (IS_ERR(phy)) { + if (err) { dev_err(&dev->dev, "could not attach to PHY\n"); - return PTR_ERR(phy); + return err; } priv->phy = phy; @@ -658,8 +665,6 @@ static int ethoc_mdio_probe(struct net_device *dev) static int ethoc_open(struct net_device *dev) { struct ethoc *priv = netdev_priv(dev); - unsigned int min_tx = 2; - unsigned int num_bd; int ret; ret = request_irq(dev->irq, ethoc_interrupt, IRQF_SHARED, @@ -667,14 +672,7 @@ static int ethoc_open(struct net_device *dev) if (ret) return ret; - /* calculate the number of TX/RX buffers, maximum 128 supported */ - num_bd = min_t(unsigned int, - 128, (dev->mem_end - dev->mem_start + 1) / ETHOC_BUFSIZ); - priv->num_tx = max(min_tx, num_bd / 4); - priv->num_rx = num_bd - priv->num_tx; - ethoc_write(priv, TX_BD_NUM, priv->num_tx); - - ethoc_init_ring(priv); + ethoc_init_ring(priv, (void*)dev->mem_start); ethoc_reset(priv); if (netif_queue_stopped(dev)) { @@ -838,7 +836,7 @@ static netdev_tx_t ethoc_start_xmit(struct sk_buff *skb, struct net_device *dev) else bd.stat &= ~TX_BD_PAD; - dest = phys_to_virt(bd.addr); + dest = priv->vma[entry]; memcpy_toio(dest, skb->data, skb->len); bd.stat &= ~(TX_BD_STATS | TX_BD_LEN_MASK); @@ -884,6 +882,7 @@ static int ethoc_probe(struct platform_device *pdev) struct resource *mem = NULL; struct ethoc *priv = NULL; unsigned int phy; + int num_bd; int ret = 0; /* allocate networking device */ @@ -965,7 +964,7 @@ static int ethoc_probe(struct platform_device *pdev) } } else { /* Allocate buffer memory */ - priv->membase = dma_alloc_coherent(NULL, + priv->membase = dmam_alloc_coherent(&pdev->dev, buffer_size, (void *)&netdev->mem_start, GFP_KERNEL); if (!priv->membase) { @@ -978,6 +977,18 @@ static int ethoc_probe(struct platform_device *pdev) priv->dma_alloc = buffer_size; } + /* calculate the number of TX/RX buffers, maximum 128 supported */ + num_bd = min_t(unsigned int, + 128, (netdev->mem_end - netdev->mem_start + 1) / ETHOC_BUFSIZ); + priv->num_tx = max(2, num_bd / 4); + priv->num_rx = num_bd - priv->num_tx; + + priv->vma = devm_kzalloc(&pdev->dev, num_bd*sizeof(void*), GFP_KERNEL); + if (!priv->vma) { + ret = -ENOMEM; + goto error; + } + /* Allow the platform setup code to pass in a MAC address. */ if (pdev->dev.platform_data) { struct ethoc_platform_data *pdata = @@ -1063,21 +1074,6 @@ free_mdio: kfree(priv->mdio->irq); mdiobus_free(priv->mdio); free: - if (priv) { - if (priv->dma_alloc) - dma_free_coherent(NULL, priv->dma_alloc, priv->membase, - netdev->mem_start); - else if (priv->membase) - devm_iounmap(&pdev->dev, priv->membase); - if (priv->iobase) - devm_iounmap(&pdev->dev, priv->iobase); - } - if (mem) - devm_release_mem_region(&pdev->dev, mem->start, - mem->end - mem->start + 1); - if (mmio) - devm_release_mem_region(&pdev->dev, mmio->start, - mmio->end - mmio->start + 1); free_netdev(netdev); out: return ret; @@ -1104,17 +1100,6 @@ static int ethoc_remove(struct platform_device *pdev) kfree(priv->mdio->irq); mdiobus_free(priv->mdio); } - if (priv->dma_alloc) - dma_free_coherent(NULL, priv->dma_alloc, priv->membase, - netdev->mem_start); - else { - devm_iounmap(&pdev->dev, priv->membase); - devm_release_mem_region(&pdev->dev, netdev->mem_start, - netdev->mem_end - netdev->mem_start + 1); - } - devm_iounmap(&pdev->dev, priv->iobase); - devm_release_mem_region(&pdev->dev, netdev->base_addr, - priv->io_region_size); unregister_netdev(netdev); free_netdev(netdev); } |