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IB/ehca: Prevent posting of SQ WQEs if QP not in RTS

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...as required by IB Spec, C10-29.

Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Joachim Fenkes 2008-04-23 11:55:45 -07:00 committed by Roland Dreier
parent bc7b3a36ba
commit 863fb09fbf
3 changed files with 9 additions and 0 deletions
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1
drivers/infiniband/hw/ehca/ehca_classes.h
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@ -160,6 +160,7 @@ struct ehca_qp {
};
u32 qp_type;
enum ehca_ext_qp_type ext_type;
enum ib_qp_state state;
struct ipz_queue ipz_squeue;
struct ipz_queue ipz_rqueue;
struct h_galpas galpas;

3
drivers/infiniband/hw/ehca/ehca_qp.c
View File

@ -550,6 +550,7 @@ static struct ehca_qp *internal_create_qp(
spin_lock_init(&my_qp->spinlock_r);
my_qp->qp_type = qp_type;
my_qp->ext_type = parms.ext_type;
my_qp->state = IB_QPS_RESET;
if (init_attr->recv_cq)
my_qp->recv_cq =
@ -1508,6 +1509,8 @@ static int internal_modify_qp(struct ib_qp *ibqp,
if (attr_mask & IB_QP_QKEY)
my_qp->qkey = attr->qkey;
my_qp->state = qp_new_state;
modify_qp_exit2:
if (squeue_locked) { /* this means: sqe -> rts */
spin_unlock_irqrestore(&my_qp->spinlock_s, flags);

5
drivers/infiniband/hw/ehca/ehca_reqs.c
View File

@ -421,6 +421,11 @@ int ehca_post_send(struct ib_qp *qp,
int ret = 0;
unsigned long flags;
if (unlikely(my_qp->state != IB_QPS_RTS)) {
ehca_err(qp->device, "QP not in RTS state qpn=%x", qp->qp_num);
return -EINVAL;
}
/* LOCK the QUEUE */
spin_lock_irqsave(&my_qp->spinlock_s, flags);