[PATCH] IPoIB: Set full membership bit in P_Keys

Always make sure that the full membership bit is set in the P_Keys
that IPoIB uses.  This makes sure that all hosts join the correct
multicast groups so that hosts that are partial partition members
can talk to the rest of the network.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 968b279..57c3ac9 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -883,6 +883,12 @@ static ssize_t create_child(struct class_device *cdev,
        if (pkey < 0 || pkey > 0xffff)
                return -EINVAL;
 
+       /*
+        * Set the full membership bit, so that we join the right
+        * broadcast group, etc.
+        */
+       pkey |= 0x8000;
+
        ret = ipoib_vlan_add(container_of(cdev, struct net_device, class_dev),
                             pkey);
 
@@ -935,6 +941,12 @@ static struct net_device *ipoib_add_port(const char *format,
                goto alloc_mem_failed;
        }
 
+       /*
+        * Set the full membership bit, so that we join the right
+        * broadcast group, etc.
+        */
+       priv->pkey |= 0x8000;
+
        priv->dev->broadcast[8] = priv->pkey >> 8;
        priv->dev->broadcast[9] = priv->pkey & 0xff;