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authorFelix Fietkau <nbd@openwrt.org>2009-03-14 15:52:42 +0000
committerFelix Fietkau <nbd@openwrt.org>2009-03-14 15:52:42 +0000
commit16defbb2bd9478f9e5384b9722f20a694e6bae41 (patch)
treef52e202c30c7fca103b196ece1223e18446e4dfc /target/linux/ar7/patches-2.6.25/140-cpmac_fix.patch
parentb4644aedce6526b5d07b336187c8e6417c7dd75e (diff)
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nuke obsolete kernel stuff
SVN-Revision: 14875
Diffstat (limited to 'target/linux/ar7/patches-2.6.25/140-cpmac_fix.patch')
-rw-r--r--target/linux/ar7/patches-2.6.25/140-cpmac_fix.patch167
1 files changed, 0 insertions, 167 deletions
diff --git a/target/linux/ar7/patches-2.6.25/140-cpmac_fix.patch b/target/linux/ar7/patches-2.6.25/140-cpmac_fix.patch
deleted file mode 100644
index f6f29eb82a..0000000000
--- a/target/linux/ar7/patches-2.6.25/140-cpmac_fix.patch
+++ /dev/null
@@ -1,167 +0,0 @@
---- a/drivers/net/cpmac.c
-+++ b/drivers/net/cpmac.c
-@@ -38,6 +38,7 @@
- #include <linux/platform_device.h>
- #include <linux/dma-mapping.h>
- #include <asm/gpio.h>
-+#include <asm/atomic.h>
-
- MODULE_AUTHOR("Eugene Konev <ejka@imfi.kspu.ru>");
- MODULE_DESCRIPTION("TI AR7 ethernet driver (CPMAC)");
-@@ -207,6 +208,7 @@
- struct work_struct reset_work;
- struct platform_device *pdev;
- struct napi_struct napi;
-+ atomic_t reset_pending;
- };
-
- static irqreturn_t cpmac_irq(int, void *);
-@@ -455,6 +457,9 @@
- struct cpmac_desc *desc;
- struct cpmac_priv *priv = netdev_priv(dev);
-
-+ if (unlikely(atomic_read(&priv->reset_pending)))
-+ return NETDEV_TX_BUSY;
-+
- if (unlikely(skb_padto(skb, ETH_ZLEN)))
- return NETDEV_TX_OK;
-
-@@ -634,14 +639,14 @@
- priv->desc_ring[i].dataflags = 0;
- if (priv->desc_ring[i].skb) {
- dev_kfree_skb_any(priv->desc_ring[i].skb);
-- if (netif_subqueue_stopped(dev, i))
-- netif_wake_subqueue(dev, i);
-+ priv->desc_ring[i].skb = NULL;
- }
- }
- }
-
- static void cpmac_hw_error(struct work_struct *work)
- {
-+ int i;
- struct cpmac_priv *priv =
- container_of(work, struct cpmac_priv, reset_work);
-
-@@ -650,8 +655,47 @@
- spin_unlock(&priv->rx_lock);
- cpmac_clear_tx(priv->dev);
- cpmac_hw_start(priv->dev);
-- napi_enable(&priv->napi);
-- netif_start_queue(priv->dev);
-+ barrier();
-+ atomic_dec(&priv->reset_pending);
-+
-+ for (i = 0; i < CPMAC_QUEUES; i++) {
-+ netif_wake_subqueue(priv->dev, i);
-+ }
-+ netif_wake_queue(priv->dev);
-+ cpmac_write(priv->regs, CPMAC_MAC_INT_ENABLE, 3);
-+}
-+
-+static void cpmac_check_status(struct net_device *dev)
-+{
-+ struct cpmac_priv *priv = netdev_priv(dev);
-+
-+ u32 macstatus = cpmac_read(priv->regs, CPMAC_MAC_STATUS);
-+ int rx_channel = (macstatus >> 8) & 7;
-+ int rx_code = (macstatus >> 12) & 15;
-+ int tx_channel = (macstatus >> 16) & 7;
-+ int tx_code = (macstatus >> 20) & 15;
-+
-+ if (rx_code || tx_code) {
-+ if (netif_msg_drv(priv) && net_ratelimit()) {
-+ /* Can't find any documentation on what these error codes actually are.
-+ * So just log them and hope..
-+ */
-+ if (rx_code)
-+ printk(KERN_WARNING "%s: host error %d on rx channel %d (macstatus %08x), resetting\n",
-+ dev->name, rx_code, rx_channel, macstatus);
-+ if (tx_code)
-+ printk(KERN_WARNING "%s: host error %d on tx channel %d (macstatus %08x), resetting\n",
-+ dev->name, tx_code, tx_channel, macstatus);
-+ }
-+
-+ netif_stop_queue(dev);
-+ cpmac_hw_stop(dev);
-+ if (schedule_work(&priv->reset_work))
-+ atomic_inc(&priv->reset_pending);
-+ if (unlikely(netif_msg_hw(priv)))
-+ cpmac_dump_regs(dev);
-+ }
-+ cpmac_write(priv->regs, CPMAC_MAC_INT_CLEAR, 0xff);
- }
-
- static irqreturn_t cpmac_irq(int irq, void *dev_id)
-@@ -682,49 +726,33 @@
-
- cpmac_write(priv->regs, CPMAC_MAC_EOI_VECTOR, 0);
-
-- if (unlikely(status & (MAC_INT_HOST | MAC_INT_STATUS))) {
-- if (netif_msg_drv(priv) && net_ratelimit())
-- printk(KERN_ERR "%s: hw error, resetting...\n",
-- dev->name);
-- netif_stop_queue(dev);
-- napi_disable(&priv->napi);
-- cpmac_hw_stop(dev);
-- schedule_work(&priv->reset_work);
-- if (unlikely(netif_msg_hw(priv)))
-- cpmac_dump_regs(dev);
-- }
-+ if (unlikely(status & (MAC_INT_HOST | MAC_INT_STATUS)))
-+ cpmac_check_status(dev);
-
- return IRQ_HANDLED;
- }
-
- static void cpmac_tx_timeout(struct net_device *dev)
- {
-- struct cpmac_priv *priv = netdev_priv(dev);
- int i;
-+ struct cpmac_priv *priv = netdev_priv(dev);
-
- spin_lock(&priv->lock);
- dev->stats.tx_errors++;
- spin_unlock(&priv->lock);
- if (netif_msg_tx_err(priv) && net_ratelimit())
- printk(KERN_WARNING "%s: transmit timeout\n", dev->name);
-- /*
-- * FIXME: waking up random queue is not the best thing to
-- * do... on the other hand why we got here at all?
-- */
--#ifdef CONFIG_NETDEVICES_MULTIQUEUE
-- for (i = 0; i < CPMAC_QUEUES; i++)
-- if (priv->desc_ring[i].skb) {
-- priv->desc_ring[i].dataflags = 0;
-- dev_kfree_skb_any(priv->desc_ring[i].skb);
-- netif_wake_subqueue(dev, i);
-- break;
-- }
--#else
-- priv->desc_ring[0].dataflags = 0;
-- if (priv->desc_ring[0].skb)
-- dev_kfree_skb_any(priv->desc_ring[0].skb);
-- netif_wake_queue(dev);
--#endif
-+
-+ atomic_inc(&priv->reset_pending);
-+ barrier();
-+ cpmac_clear_tx(dev);
-+ barrier();
-+ atomic_dec(&priv->reset_pending);
-+
-+ netif_wake_queue(priv->dev);
-+ for (i = 0; i < CPMAC_QUEUES; i++) {
-+ netif_wake_subqueue(dev, i);
-+ }
- }
-
- static int cpmac_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-@@ -911,6 +939,7 @@
- goto fail_irq;
- }
-
-+ atomic_set(&priv->reset_pending, 0);
- INIT_WORK(&priv->reset_work, cpmac_hw_error);
- cpmac_hw_start(dev);
-