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IB/ipath: Fix RC and UC error handling
When errors are detected in RC, the QP should transition to the IB_QPS_ERR state, not the IB_QPS_SQE state. Also, when the error is on the responder side, the receive work completion error was incorrect (remote vs. local). Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
parent
dd37818dbd
commit
53dc1ca194
5 changed files with 132 additions and 224 deletions
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@ -374,13 +374,14 @@ static void ipath_reset_qp(struct ipath_qp *qp, enum ib_qp_type type)
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}
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/**
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* ipath_error_qp - put a QP into an error state
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* @qp: the QP to put into an error state
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* ipath_error_qp - put a QP into the error state
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* @qp: the QP to put into the error state
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* @err: the receive completion error to signal if a RWQE is active
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*
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* Flushes both send and receive work queues.
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* Returns true if last WQE event should be generated.
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* The QP s_lock should be held and interrupts disabled.
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* If we are already in error state, just return.
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*/
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int ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err)
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@ -389,8 +390,10 @@ int ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err)
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struct ib_wc wc;
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int ret = 0;
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ipath_dbg("QP%d/%d in error state (%d)\n",
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qp->ibqp.qp_num, qp->remote_qpn, err);
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if (qp->state == IB_QPS_ERR)
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goto bail;
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qp->state = IB_QPS_ERR;
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spin_lock(&dev->pending_lock);
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if (!list_empty(&qp->timerwait))
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@ -460,6 +463,7 @@ int ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err)
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} else if (qp->ibqp.event_handler)
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ret = 1;
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bail:
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return ret;
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}
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@ -1025,48 +1029,6 @@ int ipath_init_qp_table(struct ipath_ibdev *idev, int size)
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return ret;
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}
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/**
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* ipath_sqerror_qp - put a QP's send queue into an error state
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* @qp: QP who's send queue will be put into an error state
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* @wc: the WC responsible for putting the QP in this state
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*
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* Flushes the send work queue.
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* The QP s_lock should be held and interrupts disabled.
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*/
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void ipath_sqerror_qp(struct ipath_qp *qp, struct ib_wc *wc)
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{
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struct ipath_ibdev *dev = to_idev(qp->ibqp.device);
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struct ipath_swqe *wqe = get_swqe_ptr(qp, qp->s_last);
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ipath_dbg("Send queue error on QP%d/%d: err: %d\n",
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qp->ibqp.qp_num, qp->remote_qpn, wc->status);
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spin_lock(&dev->pending_lock);
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if (!list_empty(&qp->timerwait))
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list_del_init(&qp->timerwait);
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if (!list_empty(&qp->piowait))
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list_del_init(&qp->piowait);
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spin_unlock(&dev->pending_lock);
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ipath_cq_enter(to_icq(qp->ibqp.send_cq), wc, 1);
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if (++qp->s_last >= qp->s_size)
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qp->s_last = 0;
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wc->status = IB_WC_WR_FLUSH_ERR;
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while (qp->s_last != qp->s_head) {
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wqe = get_swqe_ptr(qp, qp->s_last);
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wc->wr_id = wqe->wr.wr_id;
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wc->opcode = ib_ipath_wc_opcode[wqe->wr.opcode];
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ipath_cq_enter(to_icq(qp->ibqp.send_cq), wc, 1);
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if (++qp->s_last >= qp->s_size)
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qp->s_last = 0;
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}
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qp->s_cur = qp->s_tail = qp->s_head;
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qp->state = IB_QPS_SQE;
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}
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/**
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* ipath_get_credit - flush the send work queue of a QP
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* @qp: the qp who's send work queue to flush
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@ -771,27 +771,14 @@ static void reset_psn(struct ipath_qp *qp, u32 psn)
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*
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* The QP s_lock should be held and interrupts disabled.
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*/
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void ipath_restart_rc(struct ipath_qp *qp, u32 psn, struct ib_wc *wc)
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void ipath_restart_rc(struct ipath_qp *qp, u32 psn)
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{
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struct ipath_swqe *wqe = get_swqe_ptr(qp, qp->s_last);
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struct ipath_ibdev *dev;
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if (qp->s_retry == 0) {
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wc->wr_id = wqe->wr.wr_id;
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wc->status = IB_WC_RETRY_EXC_ERR;
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wc->opcode = ib_ipath_wc_opcode[wqe->wr.opcode];
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wc->vendor_err = 0;
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wc->byte_len = 0;
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wc->qp = &qp->ibqp;
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wc->imm_data = 0;
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wc->src_qp = qp->remote_qpn;
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wc->wc_flags = 0;
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wc->pkey_index = 0;
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wc->slid = qp->remote_ah_attr.dlid;
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wc->sl = qp->remote_ah_attr.sl;
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wc->dlid_path_bits = 0;
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wc->port_num = 0;
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ipath_sqerror_qp(qp, wc);
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ipath_send_complete(qp, wqe, IB_WC_RETRY_EXC_ERR);
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ipath_error_qp(qp, IB_WC_WR_FLUSH_ERR);
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goto bail;
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}
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qp->s_retry--;
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@ -804,6 +791,8 @@ void ipath_restart_rc(struct ipath_qp *qp, u32 psn, struct ib_wc *wc)
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spin_lock(&dev->pending_lock);
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if (!list_empty(&qp->timerwait))
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list_del_init(&qp->timerwait);
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if (!list_empty(&qp->piowait))
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list_del_init(&qp->piowait);
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spin_unlock(&dev->pending_lock);
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if (wqe->wr.opcode == IB_WR_RDMA_READ)
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@ -845,6 +834,7 @@ static int do_rc_ack(struct ipath_qp *qp, u32 aeth, u32 psn, int opcode,
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{
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struct ipath_ibdev *dev = to_idev(qp->ibqp.device);
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struct ib_wc wc;
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enum ib_wc_status status;
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struct ipath_swqe *wqe;
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int ret = 0;
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u32 ack_psn;
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@ -909,7 +899,7 @@ static int do_rc_ack(struct ipath_qp *qp, u32 aeth, u32 psn, int opcode,
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*/
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update_last_psn(qp, wqe->psn - 1);
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/* Retry this request. */
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ipath_restart_rc(qp, wqe->psn, &wc);
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ipath_restart_rc(qp, wqe->psn);
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/*
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* No need to process the ACK/NAK since we are
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* restarting an earlier request.
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@ -937,20 +927,15 @@ static int do_rc_ack(struct ipath_qp *qp, u32 aeth, u32 psn, int opcode,
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/* Post a send completion queue entry if requested. */
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if (!(qp->s_flags & IPATH_S_SIGNAL_REQ_WR) ||
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(wqe->wr.send_flags & IB_SEND_SIGNALED)) {
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memset(&wc, 0, sizeof wc);
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wc.wr_id = wqe->wr.wr_id;
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wc.status = IB_WC_SUCCESS;
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wc.opcode = ib_ipath_wc_opcode[wqe->wr.opcode];
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wc.vendor_err = 0;
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wc.byte_len = wqe->length;
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wc.imm_data = 0;
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wc.qp = &qp->ibqp;
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wc.src_qp = qp->remote_qpn;
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wc.wc_flags = 0;
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wc.pkey_index = 0;
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wc.slid = qp->remote_ah_attr.dlid;
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wc.sl = qp->remote_ah_attr.sl;
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wc.dlid_path_bits = 0;
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wc.port_num = 0;
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ipath_cq_enter(to_icq(qp->ibqp.send_cq), &wc, 0);
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}
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qp->s_retry = qp->s_retry_cnt;
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@ -1012,7 +997,7 @@ static int do_rc_ack(struct ipath_qp *qp, u32 aeth, u32 psn, int opcode,
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if (qp->s_last == qp->s_tail)
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goto bail;
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if (qp->s_rnr_retry == 0) {
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wc.status = IB_WC_RNR_RETRY_EXC_ERR;
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status = IB_WC_RNR_RETRY_EXC_ERR;
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goto class_b;
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}
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if (qp->s_rnr_retry_cnt < 7)
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@ -1050,37 +1035,25 @@ static int do_rc_ack(struct ipath_qp *qp, u32 aeth, u32 psn, int opcode,
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* RDMA READ response which terminates the RDMA
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* READ.
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*/
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ipath_restart_rc(qp, psn, &wc);
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ipath_restart_rc(qp, psn);
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break;
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case 1: /* Invalid Request */
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wc.status = IB_WC_REM_INV_REQ_ERR;
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status = IB_WC_REM_INV_REQ_ERR;
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dev->n_other_naks++;
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goto class_b;
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case 2: /* Remote Access Error */
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wc.status = IB_WC_REM_ACCESS_ERR;
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status = IB_WC_REM_ACCESS_ERR;
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dev->n_other_naks++;
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goto class_b;
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case 3: /* Remote Operation Error */
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wc.status = IB_WC_REM_OP_ERR;
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status = IB_WC_REM_OP_ERR;
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dev->n_other_naks++;
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class_b:
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wc.wr_id = wqe->wr.wr_id;
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wc.opcode = ib_ipath_wc_opcode[wqe->wr.opcode];
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wc.vendor_err = 0;
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wc.byte_len = 0;
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wc.qp = &qp->ibqp;
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wc.imm_data = 0;
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wc.src_qp = qp->remote_qpn;
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wc.wc_flags = 0;
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wc.pkey_index = 0;
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wc.slid = qp->remote_ah_attr.dlid;
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wc.sl = qp->remote_ah_attr.sl;
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wc.dlid_path_bits = 0;
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wc.port_num = 0;
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ipath_sqerror_qp(qp, &wc);
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ipath_send_complete(qp, wqe, status);
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ipath_error_qp(qp, IB_WC_WR_FLUSH_ERR);
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break;
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default:
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@ -1126,8 +1099,8 @@ static inline void ipath_rc_rcv_resp(struct ipath_ibdev *dev,
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int header_in_data)
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{
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struct ipath_swqe *wqe;
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enum ib_wc_status status;
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unsigned long flags;
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struct ib_wc wc;
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int diff;
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u32 pad;
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u32 aeth;
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@ -1159,6 +1132,7 @@ static inline void ipath_rc_rcv_resp(struct ipath_ibdev *dev,
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if (unlikely(qp->s_last == qp->s_tail))
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goto ack_done;
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wqe = get_swqe_ptr(qp, qp->s_last);
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status = IB_WC_SUCCESS;
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switch (opcode) {
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case OP(ACKNOWLEDGE):
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@ -1200,7 +1174,7 @@ static inline void ipath_rc_rcv_resp(struct ipath_ibdev *dev,
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/* no AETH, no ACK */
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if (unlikely(ipath_cmp24(psn, qp->s_last_psn + 1))) {
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dev->n_rdma_seq++;
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ipath_restart_rc(qp, qp->s_last_psn + 1, &wc);
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ipath_restart_rc(qp, qp->s_last_psn + 1);
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goto ack_done;
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}
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if (unlikely(wqe->wr.opcode != IB_WR_RDMA_READ))
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@ -1261,7 +1235,7 @@ static inline void ipath_rc_rcv_resp(struct ipath_ibdev *dev,
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/* ACKs READ req. */
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if (unlikely(ipath_cmp24(psn, qp->s_last_psn + 1))) {
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dev->n_rdma_seq++;
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ipath_restart_rc(qp, qp->s_last_psn + 1, &wc);
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ipath_restart_rc(qp, qp->s_last_psn + 1);
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goto ack_done;
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}
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if (unlikely(wqe->wr.opcode != IB_WR_RDMA_READ))
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@ -1291,31 +1265,16 @@ static inline void ipath_rc_rcv_resp(struct ipath_ibdev *dev,
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goto ack_done;
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}
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ack_done:
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spin_unlock_irqrestore(&qp->s_lock, flags);
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goto bail;
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ack_op_err:
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wc.status = IB_WC_LOC_QP_OP_ERR;
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status = IB_WC_LOC_QP_OP_ERR;
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goto ack_err;
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ack_len_err:
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wc.status = IB_WC_LOC_LEN_ERR;
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status = IB_WC_LOC_LEN_ERR;
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ack_err:
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wc.wr_id = wqe->wr.wr_id;
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wc.opcode = ib_ipath_wc_opcode[wqe->wr.opcode];
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wc.vendor_err = 0;
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wc.byte_len = 0;
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wc.imm_data = 0;
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wc.qp = &qp->ibqp;
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wc.src_qp = qp->remote_qpn;
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wc.wc_flags = 0;
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wc.pkey_index = 0;
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wc.slid = qp->remote_ah_attr.dlid;
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wc.sl = qp->remote_ah_attr.sl;
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wc.dlid_path_bits = 0;
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wc.port_num = 0;
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ipath_sqerror_qp(qp, &wc);
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ipath_send_complete(qp, wqe, status);
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ipath_error_qp(qp, IB_WC_WR_FLUSH_ERR);
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ack_done:
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spin_unlock_irqrestore(&qp->s_lock, flags);
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bail:
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return;
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@ -1523,13 +1482,12 @@ static inline int ipath_rc_rcv_error(struct ipath_ibdev *dev,
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return 0;
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}
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static void ipath_rc_error(struct ipath_qp *qp, enum ib_wc_status err)
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void ipath_rc_error(struct ipath_qp *qp, enum ib_wc_status err)
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{
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unsigned long flags;
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int lastwqe;
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spin_lock_irqsave(&qp->s_lock, flags);
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qp->state = IB_QPS_ERR;
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lastwqe = ipath_error_qp(qp, err);
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spin_unlock_irqrestore(&qp->s_lock, flags);
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@ -1643,11 +1601,7 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
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opcode == OP(SEND_LAST) ||
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opcode == OP(SEND_LAST_WITH_IMMEDIATE))
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break;
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nack_inv:
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ipath_rc_error(qp, IB_WC_REM_INV_REQ_ERR);
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qp->r_nak_state = IB_NAK_INVALID_REQUEST;
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qp->r_ack_psn = qp->r_psn;
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goto send_ack;
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goto nack_inv;
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case OP(RDMA_WRITE_FIRST):
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case OP(RDMA_WRITE_MIDDLE):
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@ -1673,18 +1627,13 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
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break;
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}
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wc.imm_data = 0;
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wc.wc_flags = 0;
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memset(&wc, 0, sizeof wc);
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/* OK, process the packet. */
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switch (opcode) {
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case OP(SEND_FIRST):
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if (!ipath_get_rwqe(qp, 0)) {
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rnr_nak:
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qp->r_nak_state = IB_RNR_NAK | qp->r_min_rnr_timer;
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qp->r_ack_psn = qp->r_psn;
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goto send_ack;
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}
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if (!ipath_get_rwqe(qp, 0))
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goto rnr_nak;
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qp->r_rcv_len = 0;
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/* FALLTHROUGH */
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case OP(SEND_MIDDLE):
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@ -1751,14 +1700,10 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
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wc.opcode = IB_WC_RECV_RDMA_WITH_IMM;
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else
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wc.opcode = IB_WC_RECV;
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wc.vendor_err = 0;
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wc.qp = &qp->ibqp;
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wc.src_qp = qp->remote_qpn;
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wc.pkey_index = 0;
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wc.slid = qp->remote_ah_attr.dlid;
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wc.sl = qp->remote_ah_attr.sl;
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wc.dlid_path_bits = 0;
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wc.port_num = 0;
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/* Signal completion event if the solicited bit is set. */
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ipath_cq_enter(to_icq(qp->ibqp.recv_cq), &wc,
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(ohdr->bth[0] &
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@ -1951,11 +1896,21 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
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goto send_ack;
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goto done;
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rnr_nak:
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qp->r_nak_state = IB_RNR_NAK | qp->r_min_rnr_timer;
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qp->r_ack_psn = qp->r_psn;
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goto send_ack;
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nack_inv:
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ipath_rc_error(qp, IB_WC_LOC_QP_OP_ERR);
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qp->r_nak_state = IB_NAK_INVALID_REQUEST;
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qp->r_ack_psn = qp->r_psn;
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goto send_ack;
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nack_acc:
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ipath_rc_error(qp, IB_WC_REM_ACCESS_ERR);
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ipath_rc_error(qp, IB_WC_LOC_PROT_ERR);
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qp->r_nak_state = IB_NAK_REMOTE_ACCESS_ERROR;
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qp->r_ack_psn = qp->r_psn;
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send_ack:
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send_rc_ack(qp);
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved.
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* Copyright (c) 2006, 2007, 2008 QLogic Corporation. All rights reserved.
|
||||
* Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved.
|
||||
*
|
||||
* This software is available to you under a choice of one of two
|
||||
|
@ -140,20 +140,11 @@ int ipath_init_sge(struct ipath_qp *qp, struct ipath_rwqe *wqe,
|
|||
goto bail;
|
||||
|
||||
bad_lkey:
|
||||
memset(&wc, 0, sizeof(wc));
|
||||
wc.wr_id = wqe->wr_id;
|
||||
wc.status = IB_WC_LOC_PROT_ERR;
|
||||
wc.opcode = IB_WC_RECV;
|
||||
wc.vendor_err = 0;
|
||||
wc.byte_len = 0;
|
||||
wc.imm_data = 0;
|
||||
wc.qp = &qp->ibqp;
|
||||
wc.src_qp = 0;
|
||||
wc.wc_flags = 0;
|
||||
wc.pkey_index = 0;
|
||||
wc.slid = 0;
|
||||
wc.sl = 0;
|
||||
wc.dlid_path_bits = 0;
|
||||
wc.port_num = 0;
|
||||
/* Signal solicited completion event. */
|
||||
ipath_cq_enter(to_icq(qp->ibqp.recv_cq), &wc, 1);
|
||||
ret = 0;
|
||||
|
@ -270,6 +261,7 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp)
|
|||
struct ib_wc wc;
|
||||
u64 sdata;
|
||||
atomic64_t *maddr;
|
||||
enum ib_wc_status send_status;
|
||||
|
||||
qp = ipath_lookup_qpn(&dev->qp_table, sqp->remote_qpn);
|
||||
if (!qp) {
|
||||
|
@ -300,8 +292,8 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp)
|
|||
wqe = get_swqe_ptr(sqp, sqp->s_last);
|
||||
spin_unlock_irqrestore(&sqp->s_lock, flags);
|
||||
|
||||
wc.wc_flags = 0;
|
||||
wc.imm_data = 0;
|
||||
memset(&wc, 0, sizeof wc);
|
||||
send_status = IB_WC_SUCCESS;
|
||||
|
||||
sqp->s_sge.sge = wqe->sg_list[0];
|
||||
sqp->s_sge.sg_list = wqe->sg_list + 1;
|
||||
|
@ -313,75 +305,33 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp)
|
|||
wc.imm_data = wqe->wr.ex.imm_data;
|
||||
/* FALLTHROUGH */
|
||||
case IB_WR_SEND:
|
||||
if (!ipath_get_rwqe(qp, 0)) {
|
||||
rnr_nak:
|
||||
/* Handle RNR NAK */
|
||||
if (qp->ibqp.qp_type == IB_QPT_UC)
|
||||
goto send_comp;
|
||||
if (sqp->s_rnr_retry == 0) {
|
||||
wc.status = IB_WC_RNR_RETRY_EXC_ERR;
|
||||
goto err;
|
||||
}
|
||||
if (sqp->s_rnr_retry_cnt < 7)
|
||||
sqp->s_rnr_retry--;
|
||||
dev->n_rnr_naks++;
|
||||
sqp->s_rnr_timeout =
|
||||
ib_ipath_rnr_table[qp->r_min_rnr_timer];
|
||||
ipath_insert_rnr_queue(sqp);
|
||||
goto done;
|
||||
}
|
||||
if (!ipath_get_rwqe(qp, 0))
|
||||
goto rnr_nak;
|
||||
break;
|
||||
|
||||
case IB_WR_RDMA_WRITE_WITH_IMM:
|
||||
if (unlikely(!(qp->qp_access_flags &
|
||||
IB_ACCESS_REMOTE_WRITE))) {
|
||||
wc.status = IB_WC_REM_INV_REQ_ERR;
|
||||
goto err;
|
||||
}
|
||||
if (unlikely(!(qp->qp_access_flags & IB_ACCESS_REMOTE_WRITE)))
|
||||
goto inv_err;
|
||||
wc.wc_flags = IB_WC_WITH_IMM;
|
||||
wc.imm_data = wqe->wr.ex.imm_data;
|
||||
if (!ipath_get_rwqe(qp, 1))
|
||||
goto rnr_nak;
|
||||
/* FALLTHROUGH */
|
||||
case IB_WR_RDMA_WRITE:
|
||||
if (unlikely(!(qp->qp_access_flags &
|
||||
IB_ACCESS_REMOTE_WRITE))) {
|
||||
wc.status = IB_WC_REM_INV_REQ_ERR;
|
||||
goto err;
|
||||
}
|
||||
if (unlikely(!(qp->qp_access_flags & IB_ACCESS_REMOTE_WRITE)))
|
||||
goto inv_err;
|
||||
if (wqe->length == 0)
|
||||
break;
|
||||
if (unlikely(!ipath_rkey_ok(qp, &qp->r_sge, wqe->length,
|
||||
wqe->wr.wr.rdma.remote_addr,
|
||||
wqe->wr.wr.rdma.rkey,
|
||||
IB_ACCESS_REMOTE_WRITE))) {
|
||||
acc_err:
|
||||
wc.status = IB_WC_REM_ACCESS_ERR;
|
||||
err:
|
||||
wc.wr_id = wqe->wr.wr_id;
|
||||
wc.opcode = ib_ipath_wc_opcode[wqe->wr.opcode];
|
||||
wc.vendor_err = 0;
|
||||
wc.byte_len = 0;
|
||||
wc.qp = &sqp->ibqp;
|
||||
wc.src_qp = sqp->remote_qpn;
|
||||
wc.pkey_index = 0;
|
||||
wc.slid = sqp->remote_ah_attr.dlid;
|
||||
wc.sl = sqp->remote_ah_attr.sl;
|
||||
wc.dlid_path_bits = 0;
|
||||
wc.port_num = 0;
|
||||
spin_lock_irqsave(&sqp->s_lock, flags);
|
||||
ipath_sqerror_qp(sqp, &wc);
|
||||
spin_unlock_irqrestore(&sqp->s_lock, flags);
|
||||
goto done;
|
||||
}
|
||||
IB_ACCESS_REMOTE_WRITE)))
|
||||
goto acc_err;
|
||||
break;
|
||||
|
||||
case IB_WR_RDMA_READ:
|
||||
if (unlikely(!(qp->qp_access_flags &
|
||||
IB_ACCESS_REMOTE_READ))) {
|
||||
wc.status = IB_WC_REM_INV_REQ_ERR;
|
||||
goto err;
|
||||
}
|
||||
if (unlikely(!(qp->qp_access_flags & IB_ACCESS_REMOTE_READ)))
|
||||
goto inv_err;
|
||||
if (unlikely(!ipath_rkey_ok(qp, &sqp->s_sge, wqe->length,
|
||||
wqe->wr.wr.rdma.remote_addr,
|
||||
wqe->wr.wr.rdma.rkey,
|
||||
|
@ -394,11 +344,8 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp)
|
|||
|
||||
case IB_WR_ATOMIC_CMP_AND_SWP:
|
||||
case IB_WR_ATOMIC_FETCH_AND_ADD:
|
||||
if (unlikely(!(qp->qp_access_flags &
|
||||
IB_ACCESS_REMOTE_ATOMIC))) {
|
||||
wc.status = IB_WC_REM_INV_REQ_ERR;
|
||||
goto err;
|
||||
}
|
||||
if (unlikely(!(qp->qp_access_flags & IB_ACCESS_REMOTE_ATOMIC)))
|
||||
goto inv_err;
|
||||
if (unlikely(!ipath_rkey_ok(qp, &qp->r_sge, sizeof(u64),
|
||||
wqe->wr.wr.atomic.remote_addr,
|
||||
wqe->wr.wr.atomic.rkey,
|
||||
|
@ -415,7 +362,8 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp)
|
|||
goto send_comp;
|
||||
|
||||
default:
|
||||
goto done;
|
||||
send_status = IB_WC_LOC_QP_OP_ERR;
|
||||
goto serr;
|
||||
}
|
||||
|
||||
sge = &sqp->s_sge.sge;
|
||||
|
@ -458,14 +406,11 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp)
|
|||
wc.opcode = IB_WC_RECV;
|
||||
wc.wr_id = qp->r_wr_id;
|
||||
wc.status = IB_WC_SUCCESS;
|
||||
wc.vendor_err = 0;
|
||||
wc.byte_len = wqe->length;
|
||||
wc.qp = &qp->ibqp;
|
||||
wc.src_qp = qp->remote_qpn;
|
||||
wc.pkey_index = 0;
|
||||
wc.slid = qp->remote_ah_attr.dlid;
|
||||
wc.sl = qp->remote_ah_attr.sl;
|
||||
wc.dlid_path_bits = 0;
|
||||
wc.port_num = 1;
|
||||
/* Signal completion event if the solicited bit is set. */
|
||||
ipath_cq_enter(to_icq(qp->ibqp.recv_cq), &wc,
|
||||
|
@ -473,9 +418,63 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp)
|
|||
|
||||
send_comp:
|
||||
sqp->s_rnr_retry = sqp->s_rnr_retry_cnt;
|
||||
ipath_send_complete(sqp, wqe, IB_WC_SUCCESS);
|
||||
ipath_send_complete(sqp, wqe, send_status);
|
||||
goto again;
|
||||
|
||||
rnr_nak:
|
||||
/* Handle RNR NAK */
|
||||
if (qp->ibqp.qp_type == IB_QPT_UC)
|
||||
goto send_comp;
|
||||
/*
|
||||
* Note: we don't need the s_lock held since the BUSY flag
|
||||
* makes this single threaded.
|
||||
*/
|
||||
if (sqp->s_rnr_retry == 0) {
|
||||
send_status = IB_WC_RNR_RETRY_EXC_ERR;
|
||||
goto serr;
|
||||
}
|
||||
if (sqp->s_rnr_retry_cnt < 7)
|
||||
sqp->s_rnr_retry--;
|
||||
spin_lock_irqsave(&sqp->s_lock, flags);
|
||||
if (!(ib_ipath_state_ops[sqp->state] & IPATH_PROCESS_RECV_OK))
|
||||
goto unlock;
|
||||
dev->n_rnr_naks++;
|
||||
sqp->s_rnr_timeout = ib_ipath_rnr_table[qp->r_min_rnr_timer];
|
||||
ipath_insert_rnr_queue(sqp);
|
||||
goto unlock;
|
||||
|
||||
inv_err:
|
||||
send_status = IB_WC_REM_INV_REQ_ERR;
|
||||
wc.status = IB_WC_LOC_QP_OP_ERR;
|
||||
goto err;
|
||||
|
||||
acc_err:
|
||||
send_status = IB_WC_REM_ACCESS_ERR;
|
||||
wc.status = IB_WC_LOC_PROT_ERR;
|
||||
err:
|
||||
/* responder goes to error state */
|
||||
ipath_rc_error(qp, wc.status);
|
||||
|
||||
serr:
|
||||
spin_lock_irqsave(&sqp->s_lock, flags);
|
||||
ipath_send_complete(sqp, wqe, send_status);
|
||||
if (sqp->ibqp.qp_type == IB_QPT_RC) {
|
||||
int lastwqe = ipath_error_qp(sqp, IB_WC_WR_FLUSH_ERR);
|
||||
|
||||
sqp->s_flags &= ~IPATH_S_BUSY;
|
||||
spin_unlock_irqrestore(&sqp->s_lock, flags);
|
||||
if (lastwqe) {
|
||||
struct ib_event ev;
|
||||
|
||||
ev.device = sqp->ibqp.device;
|
||||
ev.element.qp = &sqp->ibqp;
|
||||
ev.event = IB_EVENT_QP_LAST_WQE_REACHED;
|
||||
sqp->ibqp.event_handler(&ev, sqp->ibqp.qp_context);
|
||||
}
|
||||
goto done;
|
||||
}
|
||||
unlock:
|
||||
spin_unlock_irqrestore(&sqp->s_lock, flags);
|
||||
done:
|
||||
if (atomic_dec_and_test(&qp->refcount))
|
||||
wake_up(&qp->wait);
|
||||
|
@ -651,21 +650,15 @@ void ipath_send_complete(struct ipath_qp *qp, struct ipath_swqe *wqe,
|
|||
status != IB_WC_SUCCESS) {
|
||||
struct ib_wc wc;
|
||||
|
||||
memset(&wc, 0, sizeof wc);
|
||||
wc.wr_id = wqe->wr.wr_id;
|
||||
wc.status = status;
|
||||
wc.opcode = ib_ipath_wc_opcode[wqe->wr.opcode];
|
||||
wc.vendor_err = 0;
|
||||
wc.byte_len = wqe->length;
|
||||
wc.imm_data = 0;
|
||||
wc.qp = &qp->ibqp;
|
||||
wc.src_qp = 0;
|
||||
wc.wc_flags = 0;
|
||||
wc.pkey_index = 0;
|
||||
wc.slid = 0;
|
||||
wc.sl = 0;
|
||||
wc.dlid_path_bits = 0;
|
||||
wc.port_num = 0;
|
||||
ipath_cq_enter(to_icq(qp->ibqp.send_cq), &wc, 0);
|
||||
if (status == IB_WC_SUCCESS)
|
||||
wc.byte_len = wqe->length;
|
||||
ipath_cq_enter(to_icq(qp->ibqp.send_cq), &wc,
|
||||
status != IB_WC_SUCCESS);
|
||||
}
|
||||
|
||||
spin_lock_irqsave(&qp->s_lock, flags);
|
||||
|
|
|
@ -744,12 +744,10 @@ static void ipath_ib_timer(struct ipath_ibdev *dev)
|
|||
|
||||
/* XXX What if timer fires again while this is running? */
|
||||
for (qp = resend; qp != NULL; qp = qp->timer_next) {
|
||||
struct ib_wc wc;
|
||||
|
||||
spin_lock_irqsave(&qp->s_lock, flags);
|
||||
if (qp->s_last != qp->s_tail && qp->state == IB_QPS_RTS) {
|
||||
dev->n_timeouts++;
|
||||
ipath_restart_rc(qp, qp->s_last_psn + 1, &wc);
|
||||
ipath_restart_rc(qp, qp->s_last_psn + 1);
|
||||
}
|
||||
spin_unlock_irqrestore(&qp->s_lock, flags);
|
||||
|
||||
|
|
|
@ -710,8 +710,6 @@ void ipath_free_all_qps(struct ipath_qp_table *qpt);
|
|||
|
||||
int ipath_init_qp_table(struct ipath_ibdev *idev, int size);
|
||||
|
||||
void ipath_sqerror_qp(struct ipath_qp *qp, struct ib_wc *wc);
|
||||
|
||||
void ipath_get_credit(struct ipath_qp *qp, u32 aeth);
|
||||
|
||||
unsigned ipath_ib_rate_to_mult(enum ib_rate rate);
|
||||
|
@ -729,7 +727,9 @@ void ipath_uc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
|
|||
void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
|
||||
int has_grh, void *data, u32 tlen, struct ipath_qp *qp);
|
||||
|
||||
void ipath_restart_rc(struct ipath_qp *qp, u32 psn, struct ib_wc *wc);
|
||||
void ipath_restart_rc(struct ipath_qp *qp, u32 psn);
|
||||
|
||||
void ipath_rc_error(struct ipath_qp *qp, enum ib_wc_status err);
|
||||
|
||||
int ipath_post_ud_send(struct ipath_qp *qp, struct ib_send_wr *wr);
|
||||
|
||||
|
|
Loading…
Reference in a new issue