X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/788424fcb7a569af63373e199df562f36f39360c..0b9f62a797253b25939b69b5820a1cc7d89d0220:/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c

diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
index 6302bf648..c8c61dead 100644
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
@@ -11,6 +11,7 @@
  *  by the Free Software Foundation.
  */
 
+#include <linux/cache.h>
 #include "ag71xx.h"
 
 #define AG71XX_DEFAULT_MSG_ENABLE	\
@@ -23,10 +24,10 @@
 	| NETIF_MSG_RX_ERR		\
 	| NETIF_MSG_TX_ERR )
 
-static int ag71xx_debug = -1;
+static int ag71xx_msg_level = -1;
 
-module_param(ag71xx_debug, int, 0);
-MODULE_PARM_DESC(ag71xx_debug, "Debug level (-1=defaults,0=none,...,16=all)");
+module_param_named(msg_level, ag71xx_msg_level, int, 0);
+MODULE_PARM_DESC(msg_level, "Message level (-1=defaults,0=none,...,16=all)");
 
 static void ag71xx_dump_dma_regs(struct ag71xx *ag)
 {
@@ -86,7 +87,7 @@ static void ag71xx_ring_free(struct ag71xx_ring *ring)
 	kfree(ring->buf);
 
 	if (ring->descs_cpu)
-		dma_free_coherent(NULL, ring->size * sizeof(struct ag71xx_desc),
+		dma_free_coherent(NULL, ring->size * ring->desc_size,
 				  ring->descs_cpu, ring->descs_dma);
 }
 
@@ -95,10 +96,16 @@ static int ag71xx_ring_alloc(struct ag71xx_ring *ring, unsigned int size)
 	int err;
 	int i;
 
-	ring->descs_cpu = dma_alloc_coherent(NULL,
-					     size * sizeof(struct ag71xx_desc),
-					     &ring->descs_dma,
-					     GFP_ATOMIC);
+	ring->desc_size = sizeof(struct ag71xx_desc);
+	if (ring->desc_size % cache_line_size()) {
+		DBG("ag71xx: ring %p, desc size %u rounded to %u\n",
+			ring, ring->desc_size,
+			roundup(ring->desc_size, cache_line_size()));
+		ring->desc_size = roundup(ring->desc_size, cache_line_size());
+	}
+
+	ring->descs_cpu = dma_alloc_coherent(NULL, size * ring->desc_size,
+					     &ring->descs_dma, GFP_ATOMIC);
 	if (!ring->descs_cpu) {
 		err = -ENOMEM;
 		goto err;
@@ -113,8 +120,9 @@ static int ag71xx_ring_alloc(struct ag71xx_ring *ring, unsigned int size)
 	}
 
 	for (i = 0; i < size; i++) {
-		struct ag71xx_desc *descs = (struct ag71xx_desc *) ring->descs_cpu;
-		ring->buf[i].desc = &descs[i];
+		ring->buf[i].desc = (struct ag71xx_desc *)&ring->descs_cpu[i * ring->desc_size];
+		DBG("ag71xx: ring %p, desc %d at %p\n",
+			ring, i, ring->buf[i].desc);
 	}
 
 	return 0;
@@ -156,7 +164,7 @@ static void ag71xx_ring_tx_init(struct ag71xx *ag)
 
 	for (i = 0; i < AG71XX_TX_RING_SIZE; i++) {
 		ring->buf[i].desc->next = (u32) (ring->descs_dma +
-			sizeof(struct ag71xx_desc) * ((i + 1) % AG71XX_TX_RING_SIZE));
+			ring->desc_size * ((i + 1) % AG71XX_TX_RING_SIZE));
 
 		ring->buf[i].desc->ctrl = DESC_EMPTY;
 		ring->buf[i].skb = NULL;
@@ -190,9 +198,14 @@ static int ag71xx_ring_rx_init(struct ag71xx *ag)
 	int ret;
 
 	ret = 0;
-	for (i = 0; i < AG71XX_RX_RING_SIZE; i++)
+	for (i = 0; i < AG71XX_RX_RING_SIZE; i++) {
 		ring->buf[i].desc->next = (u32) (ring->descs_dma +
-			sizeof(struct ag71xx_desc) * ((i + 1) % AG71XX_RX_RING_SIZE));
+			ring->desc_size * ((i + 1) % AG71XX_RX_RING_SIZE));
+
+		DBG("ag71xx: RX desc at %p, next is %08x\n",
+			ring->buf[i].desc,
+			ring->buf[i].desc->next);
+	}
 
 	for (i = 0; i < AG71XX_RX_RING_SIZE; i++) {
 		struct sk_buff *skb;
@@ -305,6 +318,7 @@ static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac)
 
 static void ag71xx_dma_reset(struct ag71xx *ag)
 {
+	u32 val;
 	int i;
 
 	ag71xx_dump_dma_regs(ag);
@@ -327,13 +341,19 @@ static void ag71xx_dma_reset(struct ag71xx *ag)
 	ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE | RX_STATUS_OF);
 	ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE | TX_STATUS_UR);
 
-	if (ag71xx_rr(ag, AG71XX_REG_RX_STATUS))
-		printk(KERN_ALERT "%s: unable to clear DMA Rx status\n",
-			ag->dev->name);
+	val = ag71xx_rr(ag, AG71XX_REG_RX_STATUS);
+	if (val)
+		printk(KERN_ALERT "%s: unable to clear DMA Rx status: %08x\n",
+			ag->dev->name, val);
 
-	if (ag71xx_rr(ag, AG71XX_REG_TX_STATUS))
-		printk(KERN_ALERT "%s: unable to clear DMA Tx status\n",
-			ag->dev->name);
+	val = ag71xx_rr(ag, AG71XX_REG_TX_STATUS);
+
+	/* mask out reserved bits */
+	val &= ~0xff000000;
+
+	if (val)
+		printk(KERN_ALERT "%s: unable to clear DMA Tx status: %08x\n",
+			ag->dev->name, val);
 
 	ag71xx_dump_dma_regs(ag);
 }
@@ -382,8 +402,13 @@ static void ag71xx_hw_init(struct ag71xx *ag)
 
 	/* setup FIFO configuration registers */
 	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG0, FIFO_CFG0_INIT);
-	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, 0x0fff0000);
-	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, 0x00001fff);
+	if (pdata->is_ar724x) {
+		ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, pdata->fifo_cfg1);
+		ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, pdata->fifo_cfg2);
+	} else {
+		ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, 0x0fff0000);
+		ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, 0x00001fff);
+	}
 	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG4, FIFO_CFG4_INIT);
 	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, FIFO_CFG5_INIT);
 
@@ -562,7 +587,7 @@ static void ag71xx_oom_timer_handler(unsigned long data)
 	struct net_device *dev = (struct net_device *) data;
 	struct ag71xx *ag = netdev_priv(dev);
 
-	netif_rx_schedule(dev, &ag->napi);
+	napi_schedule(&ag->napi);
 }
 
 static void ag71xx_tx_timeout(struct net_device *dev)
@@ -718,7 +743,7 @@ static int ag71xx_poll(struct napi_struct *napi, int limit)
 		DBG("%s: disable polling mode, done=%d, limit=%d\n",
 			dev->name, done, limit);
 
-		netif_rx_complete(dev, napi);
+		napi_complete(napi);
 
 		/* enable interrupts */
 		spin_lock_irqsave(&ag->lock, flags);
@@ -737,7 +762,7 @@ static int ag71xx_poll(struct napi_struct *napi, int limit)
 		printk(KERN_DEBUG "%s: out of memory\n", dev->name);
 
 	mod_timer(&ag->oom_timer, jiffies + AG71XX_OOM_REFILL);
-	netif_rx_complete(dev, napi);
+	napi_complete(napi);
 	return 0;
 }
 
@@ -767,7 +792,7 @@ static irqreturn_t ag71xx_interrupt(int irq, void *dev_id)
 	if (likely(status & AG71XX_INT_POLL)) {
 		ag71xx_int_disable(ag, AG71XX_INT_POLL);
 		DBG("%s: enable polling mode\n", dev->name);
-		netif_rx_schedule(dev, &ag->napi);
+		napi_schedule(&ag->napi);
 	}
 
 	return IRQ_HANDLED;
@@ -778,6 +803,18 @@ static void ag71xx_set_multicast_list(struct net_device *dev)
 	/* TODO */
 }
 
+static const struct net_device_ops ag71xx_netdev_ops = {
+	.ndo_open		= ag71xx_open,
+	.ndo_stop		= ag71xx_stop,
+	.ndo_start_xmit		= ag71xx_hard_start_xmit,
+	.ndo_set_multicast_list	= ag71xx_set_multicast_list,
+	.ndo_do_ioctl		= ag71xx_do_ioctl,
+	.ndo_tx_timeout		= ag71xx_tx_timeout,
+	.ndo_change_mtu		= eth_change_mtu,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_validate_addr	= eth_validate_addr,
+};
+
 static int __init ag71xx_probe(struct platform_device *pdev)
 {
 	struct net_device *dev;
@@ -793,6 +830,12 @@ static int __init ag71xx_probe(struct platform_device *pdev)
 		goto err_out;
 	}
 
+	if (pdata->mii_bus_dev == NULL) {
+		dev_err(&pdev->dev, "no MII bus device specified\n");
+		err = -EINVAL;
+		goto err_out;
+	}
+
 	dev = alloc_etherdev(sizeof(*ag));
 	if (!dev) {
 		dev_err(&pdev->dev, "alloc_etherdev failed\n");
@@ -805,8 +848,7 @@ static int __init ag71xx_probe(struct platform_device *pdev)
 	ag = netdev_priv(dev);
 	ag->pdev = pdev;
 	ag->dev = dev;
-	ag->mii_bus = ag71xx_mdio_bus->mii_bus;
-	ag->msg_enable = netif_msg_init(ag71xx_debug,
+	ag->msg_enable = netif_msg_init(ag71xx_msg_level,
 					AG71XX_DEFAULT_MSG_ENABLE);
 	spin_lock_init(&ag->lock);
 
@@ -824,32 +866,18 @@ static int __init ag71xx_probe(struct platform_device *pdev)
 		goto err_free_dev;
 	}
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base2");
-	if (!res) {
-		dev_err(&pdev->dev, "no mac_base2 resource found\n");
-		err = -ENXIO;
-		goto err_unmap_base1;
-	}
-
-	ag->mac_base2 = ioremap_nocache(res->start, res->end - res->start + 1);
-	if (!ag->mac_base) {
-		dev_err(&pdev->dev, "unable to ioremap mac_base2\n");
-		err = -ENOMEM;
-		goto err_unmap_base1;
-	}
-
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mii_ctrl");
 	if (!res) {
 		dev_err(&pdev->dev, "no mii_ctrl resource found\n");
 		err = -ENXIO;
-		goto err_unmap_base2;
+		goto err_unmap_base;
 	}
 
 	ag->mii_ctrl = ioremap_nocache(res->start, res->end - res->start + 1);
 	if (!ag->mii_ctrl) {
 		dev_err(&pdev->dev, "unable to ioremap mii_ctrl\n");
 		err = -ENOMEM;
-		goto err_unmap_base2;
+		goto err_unmap_base;
 	}
 
 	dev->irq = platform_get_irq(pdev, 0);
@@ -862,14 +890,9 @@ static int __init ag71xx_probe(struct platform_device *pdev)
 	}
 
 	dev->base_addr = (unsigned long)ag->mac_base;
-	dev->open = ag71xx_open;
-	dev->stop = ag71xx_stop;
-	dev->hard_start_xmit = ag71xx_hard_start_xmit;
-	dev->set_multicast_list = ag71xx_set_multicast_list;
-	dev->do_ioctl = ag71xx_do_ioctl;
+	dev->netdev_ops = &ag71xx_netdev_ops;
 	dev->ethtool_ops = &ag71xx_ethtool_ops;
 
-	dev->tx_timeout = ag71xx_tx_timeout;
 	INIT_WORK(&ag->restart_work, ag71xx_restart_work_func);
 
 	init_timer(&ag->oom_timer);
@@ -895,13 +918,6 @@ static int __init ag71xx_probe(struct platform_device *pdev)
 
 	ag71xx_dump_regs(ag);
 
-	/* Reset the mdio bus explicitly */
-	if (ag->mii_bus) {
-		mutex_lock(&ag->mii_bus->mdio_lock);
-		ag->mii_bus->reset(ag->mii_bus);
-		mutex_unlock(&ag->mii_bus->mdio_lock);
-	}
-
 	err = ag71xx_phy_connect(ag);
 	if (err)
 		goto err_unregister_netdev;
@@ -916,9 +932,7 @@ static int __init ag71xx_probe(struct platform_device *pdev)
 	free_irq(dev->irq, dev);
  err_unmap_mii_ctrl:
 	iounmap(ag->mii_ctrl);
- err_unmap_base2:
-	iounmap(ag->mac_base2);
- err_unmap_base1:
+ err_unmap_base:
 	iounmap(ag->mac_base);
  err_free_dev:
 	kfree(dev);
@@ -938,7 +952,6 @@ static int __exit ag71xx_remove(struct platform_device *pdev)
 		unregister_netdev(dev);
 		free_irq(dev->irq, dev);
 		iounmap(ag->mii_ctrl);
-		iounmap(ag->mac_base2);
 		iounmap(ag->mac_base);
 		kfree(dev);
 		platform_set_drvdata(pdev, NULL);