RDMA/nes: Fix terminate connection
Fixes a crash that occurs during close when error async event is received. Terminate message is not sent to the remote node if already processing close. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Faisal Latif <Faisal.Latif@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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@ -3553,9 +3553,9 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
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aeqe_cq_id = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]);
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if (aeq_info & NES_AEQE_QP) {
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if ((!nes_is_resource_allocated(nesadapter, nesadapter->allocated_qps,
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aeqe_cq_id)) ||
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(atomic_read(&nesqp->close_timer_started)))
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if (!nes_is_resource_allocated(nesadapter,
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nesadapter->allocated_qps,
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aeqe_cq_id))
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return;
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}
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@ -3566,8 +3566,7 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
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if (atomic_inc_return(&nesqp->close_timer_started) == 1) {
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if ((tcp_state == NES_AEQE_TCP_STATE_CLOSE_WAIT) &&
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(nesqp->ibqp_state == IB_QPS_RTS) &&
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((nesadapter->eeprom_version >> 16) != NES_A0)) {
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(nesqp->ibqp_state == IB_QPS_RTS)) {
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spin_lock_irqsave(&nesqp->lock, flags);
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nesqp->hw_iwarp_state = iwarp_state;
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nesqp->hw_tcp_state = tcp_state;
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@ -3594,9 +3593,10 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
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return;
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}
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spin_lock_irqsave(&nesqp->lock, flags);
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nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_CLOSING;
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nesqp->hw_iwarp_state = iwarp_state;
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nesqp->hw_tcp_state = tcp_state;
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nesqp->last_aeq = async_event_id;
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spin_unlock_irqrestore(&nesqp->lock, flags);
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nes_hw_modify_qp(nesdev, nesqp, NES_CQP_QP_IWARP_STATE_CLOSING, 0, 0);
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nes_cm_disconn(nesqp);
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break;
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@ -3694,7 +3694,8 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
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case NES_AEQE_AEID_ROE_INVALID_RDMA_WRITE_OR_READ_RESP:
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printk(KERN_ERR PFX "QP[%u] async_event_id=0x%04X IB_EVENT_QP_FATAL\n",
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nesqp->hwqp.qp_id, async_event_id);
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nes_terminate_connection(nesdev, nesqp, aeqe, IB_EVENT_QP_FATAL);
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if (!atomic_read(&nesqp->close_timer_started))
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nes_terminate_connection(nesdev, nesqp, aeqe, IB_EVENT_QP_FATAL);
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break;
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case NES_AEQE_AEID_CQ_OPERATION_ERROR:
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