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authorMichael S. Tsirkin <mst@mellanox.co.il>2006-02-07 16:37:08 -0800
committerRoland Dreier <rolandd@cisco.com>2006-02-07 16:37:08 -0800
commit479a079663bd4c5f3d2714643b1b8c406aaba3e0 (patch)
treee484f9a2dce6ee68f1c328d54f18acbf137c1999 /drivers/infiniband/ulp/ipoib/ipoib.h
parent8cf3f04f45694db0699f608c0e3fb550c607cc88 (diff)
IPoIB: Don't start send-only joins while multicast thread is stopped
Fix the following race scenario: - Device is up. - Port event or set mcast list triggers ipoib_mcast_stop_thread, this cancels the query and waits on mcast "done" completion. - Completion is called and "done" is set. - Meanwhile, ipoib_mcast_send arrives and starts a new query, re-initializing "done". Fix this by adding a "multicast started" bit and checking it before starting a send-only join. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib.h')
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index e0a5412b7e6..2f85a9a831b 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -78,6 +78,7 @@ enum {
IPOIB_FLAG_SUBINTERFACE = 4,
IPOIB_MCAST_RUN = 5,
IPOIB_STOP_REAPER = 6,
+ IPOIB_MCAST_STARTED = 7,
IPOIB_MAX_BACKOFF_SECONDS = 16,