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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-15 18:40:05 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-15 18:40:05 +0200
commit2ed0e21b30b53d3a94e204196e523e6c8f732b56 (patch)
treede2635426477d86338a9469ce09ba0626052288f /drivers/net/macb.c
parentMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/po... (diff)
parentMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds... (diff)
downloadlinux-2ed0e21b30b53d3a94e204196e523e6c8f732b56.tar.xz
linux-2ed0e21b30b53d3a94e204196e523e6c8f732b56.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1244 commits) pkt_sched: Rename PSCHED_US2NS and PSCHED_NS2US ipv4: Fix fib_trie rebalancing Bluetooth: Fix issue with uninitialized nsh.type in DTL-1 driver Bluetooth: Fix Kconfig issue with RFKILL integration PIM-SM: namespace changes ipv4: update ARPD help text net: use a deferred timer in rt_check_expire ieee802154: fix kconfig bool/tristate muckup bonding: initialization rework bonding: use is_zero_ether_addr bonding: network device names are case sensative bonding: elminate bad refcount code bonding: fix style issues bonding: fix destructor bonding: remove bonding read/write semaphore bonding: initialize before registration bonding: bond_create always called with default parameters x_tables: Convert printk to pr_err netfilter: conntrack: optional reliable conntrack event delivery list_nulls: add hlist_nulls_add_head and hlist_nulls_del ...
Diffstat (limited to 'drivers/net/macb.c')
-rw-r--r--drivers/net/macb.c20
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index e82aee41d77e..5b5c25368d1e 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -599,6 +599,21 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling receive - used by netconsole and other diagnostic tools
+ * to allow network i/o with interrupts disabled.
+ */
+static void macb_poll_controller(struct net_device *dev)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ macb_interrupt(dev->irq, dev);
+ local_irq_restore(flags);
+}
+#endif
+
static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct macb *bp = netdev_priv(dev);
@@ -630,7 +645,7 @@ static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev)
"BUG! Tx Ring full when queue awake!\n");
dev_dbg(&bp->pdev->dev, "tx_head = %u, tx_tail = %u\n",
bp->tx_head, bp->tx_tail);
- return 1;
+ return NETDEV_TX_BUSY;
}
entry = bp->tx_head;
@@ -1094,6 +1109,9 @@ static const struct net_device_ops macb_netdev_ops = {
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = eth_change_mtu,
.ndo_set_mac_address = eth_mac_addr,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = macb_poll_controller,
+#endif
};
static int __init macb_probe(struct platform_device *pdev)