diff options
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_qp.c')
-rw-r--r-- | drivers/infiniband/hw/ipath/ipath_qp.c | 54 |
1 files changed, 8 insertions, 46 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index dd5b6e9d57c2..6f98632877eb 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -374,13 +374,14 @@ static void ipath_reset_qp(struct ipath_qp *qp, enum ib_qp_type type) } /** - * ipath_error_qp - put a QP into an error state - * @qp: the QP to put into an error state + * ipath_error_qp - put a QP into the error state + * @qp: the QP to put into the error state * @err: the receive completion error to signal if a RWQE is active * * Flushes both send and receive work queues. * Returns true if last WQE event should be generated. * The QP s_lock should be held and interrupts disabled. + * If we are already in error state, just return. */ int ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err) @@ -389,8 +390,10 @@ int ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err) struct ib_wc wc; int ret = 0; - ipath_dbg("QP%d/%d in error state (%d)\n", - qp->ibqp.qp_num, qp->remote_qpn, err); + if (qp->state == IB_QPS_ERR) + goto bail; + + qp->state = IB_QPS_ERR; spin_lock(&dev->pending_lock); if (!list_empty(&qp->timerwait)) @@ -460,6 +463,7 @@ int ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err) } else if (qp->ibqp.event_handler) ret = 1; +bail: return ret; } @@ -1026,48 +1030,6 @@ bail: } /** - * ipath_sqerror_qp - put a QP's send queue into an error state - * @qp: QP who's send queue will be put into an error state - * @wc: the WC responsible for putting the QP in this state - * - * Flushes the send work queue. - * The QP s_lock should be held and interrupts disabled. - */ - -void ipath_sqerror_qp(struct ipath_qp *qp, struct ib_wc *wc) -{ - struct ipath_ibdev *dev = to_idev(qp->ibqp.device); - struct ipath_swqe *wqe = get_swqe_ptr(qp, qp->s_last); - - ipath_dbg("Send queue error on QP%d/%d: err: %d\n", - qp->ibqp.qp_num, qp->remote_qpn, wc->status); - - spin_lock(&dev->pending_lock); - if (!list_empty(&qp->timerwait)) - list_del_init(&qp->timerwait); - if (!list_empty(&qp->piowait)) - list_del_init(&qp->piowait); - spin_unlock(&dev->pending_lock); - - ipath_cq_enter(to_icq(qp->ibqp.send_cq), wc, 1); - if (++qp->s_last >= qp->s_size) - qp->s_last = 0; - - wc->status = IB_WC_WR_FLUSH_ERR; - - while (qp->s_last != qp->s_head) { - wqe = get_swqe_ptr(qp, qp->s_last); - wc->wr_id = wqe->wr.wr_id; - wc->opcode = ib_ipath_wc_opcode[wqe->wr.opcode]; - ipath_cq_enter(to_icq(qp->ibqp.send_cq), wc, 1); - if (++qp->s_last >= qp->s_size) - qp->s_last = 0; - } - qp->s_cur = qp->s_tail = qp->s_head; - qp->state = IB_QPS_SQE; -} - -/** * ipath_get_credit - flush the send work queue of a QP * @qp: the qp who's send work queue to flush * @aeth: the Acknowledge Extended Transport Header |