From: Moni Shoua <monis@voltaire•com>
To: Roland Dreier <rdreier@cisco•com>, Jay Vosburgh <fubar@us•ibm.com>
Cc: OpenFabrics General <general@lists•openfabrics.org>,
netdev@vger•kernel.org
Subject: [PATCH V5 4/11] IB/ipoib: Verify address handle validity on send
Date: Thu, 20 Sep 2007 16:42:42 +0300 [thread overview]
Message-ID: <46F278D2.6080703@voltaire.com> (raw)
In-Reply-To: <46F27692.3070404@voltaire.com>
When the bonding device senses a carrier loss of its active slave it replaces
that slave with a new one. In between the times when the carrier of an IPoIB
device goes down and ipoib_neigh is destroyed, it is possible that the
bonding driver will send a packet on a new slave that uses an old ipoib_neigh.
This patch detects and prevents this from happenning.
Signed-off-by: Moni Shoua <monis at voltaire.com>
Signed-off-by: Or Gerlitz <ogerlitz at voltaire.com>
---
drivers/infiniband/ulp/ipoib/ipoib_main.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
Index: net-2.6/drivers/infiniband/ulp/ipoib/ipoib_main.c
===================================================================
--- net-2.6.orig/drivers/infiniband/ulp/ipoib/ipoib_main.c 2007-09-18 17:09:26.535874225 +0200
+++ net-2.6/drivers/infiniband/ulp/ipoib/ipoib_main.c 2007-09-18 17:10:22.375853147 +0200
@@ -686,9 +686,10 @@ static int ipoib_start_xmit(struct sk_bu
goto out;
}
} else if (neigh->ah) {
- if (unlikely(memcmp(&neigh->dgid.raw,
+ if (unlikely((memcmp(&neigh->dgid.raw,
skb->dst->neighbour->ha + 4,
- sizeof(union ib_gid)))) {
+ sizeof(union ib_gid))) ||
+ (neigh->dev != dev))) {
spin_lock(&priv->lock);
/*
* It's safe to call ipoib_put_ah() inside
next prev parent reply other threads:[~2007-09-20 13:42 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-20 13:33 [PATCH V5 0/11] net/bonding: ADD IPoIB support for the bonding driver Moni Shoua
2007-09-20 13:39 ` [ofa-general] [PATCH V5 1/11] net/core: add a netdev notification for slave detach Moni Shoua
2007-09-20 13:40 ` [PATCH V5 2/11] IB/ipoib: Notify the world before doing unregister Moni Shoua
2007-09-20 16:20 ` [ofa-general] " Roland Dreier
2007-09-23 7:55 ` Moni Shoua
2007-09-23 16:34 ` Roland Dreier
2007-09-24 13:56 ` Moni Shoua
2007-09-20 13:41 ` [ofa-general] [PATCH V5 3/11] IB/ipoib: Bound the net device to the ipoib_neigh structue Moni Shoua
2007-09-20 13:42 ` Moni Shoua [this message]
2007-09-20 13:43 ` [ofa-general] [PATCH V5 5/11] net/bonding: Enable bonding to enslave non ARPHRD_ETHER Moni Shoua
2007-09-20 13:45 ` [PATCH V5 6/11] net/bonding: Enable bonding to enslave netdevices not supporting set_mac_address() Moni Shoua
2007-09-20 13:58 ` [ofa-general] [PATCH V5 7/11] net/bonding: Enable IP multicast for bonding IPoIB devices Moni Shoua
2007-09-20 14:00 ` [ofa-general] [PATCH V5 8/11] net/bonding: Handlle wrong assumptions that slave is always an Ethernet device Moni Shoua
2007-09-20 14:02 ` [ofa-general] PATCH V5 9/11] net/bonding: Delay sending of gratuitous ARP to avoid failure Moni Shoua
2007-09-20 14:04 ` [PATCH V5 10/11] net/bonding: Destroy bonding master when last slave is gone Moni Shoua
2007-09-20 14:06 ` [PATCH V5 5/11] net/bonding: Enable bonding to enslave non ARPHRD_ETHER Moni Shoua
2007-09-20 14:07 ` [PATCH 11/11] bonding: Optionally allow ethernet slaves to keep own MAC Moni Shoua
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