mirror of https://gitee.com/openkylin/linux.git
RDMA/ocrdma: Check resource ids received in Async CQE
Some versions of the FW sends wrong QP or CQ IDs in the Async CQE. Adding a check to see whether qp or cq structures associated with the CQE is valid. Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
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@ -678,11 +678,33 @@ static void ocrdma_dispatch_ibevent(struct ocrdma_dev *dev,
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int dev_event = 0;
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int type = (cqe->valid_ae_event & OCRDMA_AE_MCQE_EVENT_TYPE_MASK) >>
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OCRDMA_AE_MCQE_EVENT_TYPE_SHIFT;
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u16 qpid = cqe->qpvalid_qpid & OCRDMA_AE_MCQE_QPID_MASK;
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u16 cqid = cqe->cqvalid_cqid & OCRDMA_AE_MCQE_CQID_MASK;
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if (cqe->qpvalid_qpid & OCRDMA_AE_MCQE_QPVALID)
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qp = dev->qp_tbl[cqe->qpvalid_qpid & OCRDMA_AE_MCQE_QPID_MASK];
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if (cqe->cqvalid_cqid & OCRDMA_AE_MCQE_CQVALID)
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cq = dev->cq_tbl[cqe->cqvalid_cqid & OCRDMA_AE_MCQE_CQID_MASK];
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/*
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* Some FW version returns wrong qp or cq ids in CQEs.
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* Checking whether the IDs are valid
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*/
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if (cqe->qpvalid_qpid & OCRDMA_AE_MCQE_QPVALID) {
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if (qpid < dev->attr.max_qp)
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qp = dev->qp_tbl[qpid];
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if (qp == NULL) {
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pr_err("ocrdma%d:Async event - qpid %u is not valid\n",
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dev->id, qpid);
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return;
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}
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}
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if (cqe->cqvalid_cqid & OCRDMA_AE_MCQE_CQVALID) {
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if (cqid < dev->attr.max_cq)
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cq = dev->cq_tbl[cqid];
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if (cq == NULL) {
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pr_err("ocrdma%d:Async event - cqid %u is not valid\n",
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dev->id, cqid);
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return;
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}
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}
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memset(&ib_evt, 0, sizeof(ib_evt));
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