When the bonding device enslaves IPoIB devices it takes pointers to
functions in the ib_ipoib module. This is fine as long as the ib_ipoib
nodule remains loaded while the references to its functions exist.
So, to help bonding do a cleanup on time, when the IPoIB net device is a
slave of a bonding master, let the master know that the IPoIB device is
about to unregister (but before calling unregister).
Signed-off-by: Moni Shoua <[EMAIL PROTECTED]>
---
drivers/infiniband/ulp/ipoib/ipoib_main.c | 15 +++++++++++++++
1 files changed, 15 insertions(+)
Index: net-2.6/drivers/infiniband/ulp/ipoib/ipoib_main.c
===================================================================
--- net-2.6.orig/drivers/infiniband/ulp/ipoib/ipoib_main.c 2007-08-20
14:29:29.522209580 +0300
+++ net-2.6/drivers/infiniband/ulp/ipoib/ipoib_main.c 2007-08-20
14:43:03.432162133 +0300
@@ -48,6 +48,7 @@
#include <linux/in.h>
#include <net/dst.h>
+#include <linux/netdevice.h>
MODULE_AUTHOR("Roland Dreier");
MODULE_DESCRIPTION("IP-over-InfiniBand net driver");
@@ -772,6 +773,18 @@ static void ipoib_timeout(struct net_dev
/* XXX reset QP, etc. */
}
+static int ipoib_slave_detach(struct net_device *dev)
+{
+ int ret = 0;
+ if (dev->flags & IFF_SLAVE) {
+ dev->priv_flags |= IFF_SLAVE_DETACH;
+ rtnl_lock();
+ ret = call_netdevice_notifiers(NETDEV_CHANGE, dev);
+ rtnl_unlock();
+ }
+ return ret;
+}
+
static int ipoib_hard_header(struct sk_buff *skb,
struct net_device *dev,
unsigned short type,
@@ -921,6 +934,7 @@ void ipoib_dev_cleanup(struct net_device
/* Delete any child interfaces first */
list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs, list) {
+ ipoib_slave_detach(cpriv->dev);
unregister_netdev(cpriv->dev);
ipoib_dev_cleanup(cpriv->dev);
free_netdev(cpriv->dev);
@@ -1208,6 +1222,7 @@ static void ipoib_remove_one(struct ib_d
ib_unregister_event_handler(&priv->event_handler);
flush_scheduled_work();
+ ipoib_slave_detach(priv->dev);
unregister_netdev(priv->dev);
ipoib_dev_cleanup(priv->dev);
free_netdev(priv->dev);
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