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Subject[PATCH RESEND 1/3] RDMA/cxgb3: Flush the RQ when closing.
Date

RDMA/cxgb3: Flush the RQ when closing.

- for kernel mode cqs, call event notification handler when flushing
- flush qp when moving from RTS -> CLOSING
- fixed logic to identify a kernel mode qp

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
---

drivers/infiniband/hw/cxgb3/iwch_qp.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c
index 9bb8112..7681fdc 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_qp.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c
@@ -642,6 +642,7 @@ static void __flush_qp(struct iwch_qp *qhp, unsigned long *flag)
cxio_flush_rq(&qhp->wq, &rchp->cq, count);
spin_unlock(&qhp->lock);
spin_unlock_irqrestore(&rchp->lock, *flag);
+ (*rchp->ibcq.comp_handler)(&rchp->ibcq, rchp->ibcq.cq_context);

/* locking heirarchy: cq lock first, then qp lock. */
spin_lock_irqsave(&schp->lock, *flag);
@@ -651,6 +652,7 @@ static void __flush_qp(struct iwch_qp *qhp, unsigned long *flag)
cxio_flush_sq(&qhp->wq, &schp->cq, count);
spin_unlock(&qhp->lock);
spin_unlock_irqrestore(&schp->lock, *flag);
+ (*schp->ibcq.comp_handler)(&schp->ibcq, schp->ibcq.cq_context);

/* deref */
if (atomic_dec_and_test(&qhp->refcnt))
@@ -661,7 +663,7 @@ static void __flush_qp(struct iwch_qp *qhp, unsigned long *flag)

static void flush_qp(struct iwch_qp *qhp, unsigned long *flag)
{
- if (t3b_device(qhp->rhp))
+ if (qhp->ibqp.uobject)
cxio_set_wq_in_error(&qhp->wq);
else
__flush_qp(qhp, flag);
@@ -830,10 +832,11 @@ int iwch_modify_qp(struct iwch_dev *rhp, struct iwch_qp *qhp,
disconnect = 1;
ep = qhp->ep;
}
+ flush_qp(qhp, &flag);
break;
case IWCH_QP_STATE_TERMINATE:
qhp->attr.state = IWCH_QP_STATE_TERMINATE;
- if (t3b_device(qhp->rhp))
+ if (qhp->ibqp.uobject)
cxio_set_wq_in_error(&qhp->wq);
if (!internal)
terminate = 1;

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