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IB/mlx4: Fix port returned from query QP for QPs in INIT state

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When a QP is in the INIT state, the sched_queue field hasn't been given 
to the firmware yet, so the firmware cannot return the value when the QP 
is queried.  To handle this, use the port number that is saved in the 
driver's QP data structure.

Found by Dotan Barak and Yaron Gepstein of Mellanox.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Jack Morgenstein 2007-07-17 18:37:38 -07:00 committed by Roland Dreier
parent 586bb586ae
commit 1c27cb71aa
1 changed files with 4 additions and 1 deletions
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5
drivers/infiniband/hw/mlx4/qp.c
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@ -1560,7 +1560,10 @@ int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr
}
qp_attr->pkey_index = context.pri_path.pkey_index & 0x7f;
qp_attr->port_num = context.pri_path.sched_queue & 0x40 ? 2 : 1;
if (qp_attr->qp_state == IB_QPS_INIT)
qp_attr->port_num = qp->port;
else
qp_attr->port_num = context.pri_path.sched_queue & 0x40 ? 2 : 1;
/* qp_attr->en_sqd_async_notify is only applicable in modify qp */
qp_attr->sq_draining = mlx4_state == MLX4_QP_STATE_SQ_DRAINING;