diff options
| author | Eli Cohen <eli@mellanox.co.il> | 2008-07-14 23:48:50 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-07-14 23:48:50 -0700 |
| commit | d0de13622d5ac658efe7c51521dbdbe0752aa3dd (patch) | |
| tree | c61104a706ff1122b72888e0ed466d8183ee79e3 /drivers/infiniband/ulp/ipoib/ipoib_multicast.c | |
| parent | 5892eff91ad60ba365ae7f75050ce464036c5396 (diff) | |
IPoIB: Only set Q_Key once: after joining broadcast group
The current code will set the Q_Key for any join of a non-sendonly
multicast group. The operation involves a modify QP operation, which
is fairly heavyweight, and is only really required after the join of
the broadcast group. Fix this by adding a parameter to ipoib_mcast_attach()
to control when the Q_Key is set.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_multicast.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 0b7d129161e..55ebd950bf2 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -186,6 +186,7 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast, struct ipoib_dev_priv *priv = netdev_priv(dev); struct ipoib_ah *ah; int ret; + int set_qkey = 0; mcast->mcmember = *mcmember; @@ -200,6 +201,7 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast, priv->qkey = be32_to_cpu(priv->broadcast->mcmember.qkey); spin_unlock_irq(&priv->lock); priv->tx_wr.wr.ud.remote_qkey = priv->qkey; + set_qkey = 1; } if (!test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) { @@ -212,7 +214,7 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast, } ret = ipoib_mcast_attach(dev, be16_to_cpu(mcast->mcmember.mlid), - &mcast->mcmember.mgid); + &mcast->mcmember.mgid, set_qkey); if (ret < 0) { ipoib_warn(priv, "couldn't attach QP to multicast group " IPOIB_GID_FMT "\n", |