lkml.org 
[lkml]   [2007]   [Oct]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] ucc_geth: add support for netpoll
This patch adds netpoll support for the QE UCC Gigabit Ethernet
driver. The approach is very similar to the gianfar driver.

Tested using netconsole.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
---
drivers/net/ucc_geth.c | 19 +++++++++++++++++++
1 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index 18a6f48..06807ce 100644
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -3691,6 +3691,22 @@ static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
return IRQ_HANDLED;
}

+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+static void ucc_netpoll(struct net_device *dev)
+{
+ struct ucc_geth_private *ugeth = netdev_priv(dev);
+
+ disable_irq(ugeth->ug_info->uf_info.irq);
+ ucc_geth_irq_handler(ugeth->ug_info->uf_info.irq, dev);
+ enable_irq(ugeth->ug_info->uf_info.irq);
+}
+#endif /* CONFIG_NET_POLL_CONTROLLER */
+
/* Called when something needs to use the ethernet device */
/* Returns 0 for success. */
static int ucc_geth_open(struct net_device *dev)
@@ -3969,6 +3985,9 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
dev->poll = ucc_geth_poll;
dev->weight = UCC_GETH_DEV_WEIGHT;
#endif /* CONFIG_UGETH_NAPI */
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = ucc_netpoll;
+#endif
dev->stop = ucc_geth_close;
dev->get_stats = ucc_geth_get_stats;
// dev->change_mtu = ucc_geth_change_mtu;
--
1.5.0.6
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-10-11 14:51    [W:0.125 / U:3.844 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site