From: Yossi Etigin <yosefe@Voltaire.COM>
Date: Sun, 6 Sep 2009 03:24:24 +0000 (-0700)
Subject: IB/core: Fix send multicast group leave retry
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e1d7806df32bd247af6a2fe52433ecdd34fee773;p=linux-beck.git

IB/core: Fix send multicast group leave retry

Until now, retries were only sent when joining a multicast group. This
patch will adds retries when leaving a multicast group as well.

Signed-off-by: Ron Livne <ronli@voltaire.com>
Signed-off-by: Yossi Etigin <yosefe@voltaire.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---

diff --git a/drivers/infiniband/core/multicast.c b/drivers/infiniband/core/multicast.c
index 107f170c57cd..8d82ba171353 100644
--- a/drivers/infiniband/core/multicast.c
+++ b/drivers/infiniband/core/multicast.c
@@ -106,6 +106,8 @@ struct mcast_group {
 	struct ib_sa_query	*query;
 	int			query_id;
 	u16			pkey_index;
+	u8			leave_state;
+	int			retries;
 };
 
 struct mcast_member {
@@ -350,6 +352,7 @@ static int send_leave(struct mcast_group *group, u8 leave_state)
 
 	rec = group->rec;
 	rec.join_state = leave_state;
+	group->leave_state = leave_state;
 
 	ret = ib_sa_mcmember_rec_query(&sa_client, port->dev->device,
 				       port->port_num, IB_SA_METHOD_DELETE, &rec,
@@ -542,7 +545,11 @@ static void leave_handler(int status, struct ib_sa_mcmember_rec *rec,
 {
 	struct mcast_group *group = context;
 
-	mcast_work_handler(&group->work);
+	if (status && group->retries > 0 &&
+	    !send_leave(group, group->leave_state))
+		group->retries--;
+	else
+		mcast_work_handler(&group->work);
 }
 
 static struct mcast_group *acquire_group(struct mcast_port *port,
@@ -565,6 +572,7 @@ static struct mcast_group *acquire_group(struct mcast_port *port,
 	if (!group)
 		return NULL;
 
+	group->retries = 3;
 	group->port = port;
 	group->rec.mgid = *mgid;
 	group->pkey_index = MCAST_INVALID_PKEY_INDEX;