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RDMA/cxgb3: Flush the receive queue when closing 

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

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Steve Wise 2008-01-21 14:42:09 -06:00 committed by Roland Dreier
parent 4e1e93a418
commit 856b592504
1 changed files with 5 additions and 2 deletions
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7
drivers/infiniband/hw/cxgb3/iwch_qp.c
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@ -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;