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| author | Faisal Latif <faisal.latif@intel.com> | 2010-05-21 16:55:03 -0500 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2010-05-24 21:12:54 -0700 |
| commit | df02902313feb1472bc6ec16e486f72b39e9d4b2 (patch) | |
| tree | 6cb761596855ce1c34f0314e6e4139f8a75198d0 | |
| parent | 39942a028c559e39495ae7b29a8dd9b0c3c03003 (diff) | |
| download | kernel_samsung_aries-df02902313feb1472bc6ec16e486f72b39e9d4b2.zip kernel_samsung_aries-df02902313feb1472bc6ec16e486f72b39e9d4b2.tar.gz kernel_samsung_aries-df02902313feb1472bc6ec16e486f72b39e9d4b2.tar.bz2 | |
RDMA/nes: Async event for closed QP causes crash
Under abnormal termination, modify_qp() closes the QP, and async event
(AE) handling also attempts to close the same QP, causing a crash.
Fix this by checking the state of the QP before processing the AE.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
| -rw-r--r-- | drivers/infiniband/hw/nes/nes_hw.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c index 86acb7d..bb9c775 100644 --- a/drivers/infiniband/hw/nes/nes_hw.c +++ b/drivers/infiniband/hw/nes/nes_hw.c @@ -3422,6 +3422,7 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev, struct nes_adapter *nesadapter = nesdev->nesadapter; u32 aeq_info; u32 next_iwarp_state = 0; + u32 aeqe_cq_id; u16 async_event_id; u8 tcp_state; u8 iwarp_state; @@ -3449,6 +3450,14 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev, le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]), aeqe, nes_tcp_state_str[tcp_state], nes_iwarp_state_str[iwarp_state]); + aeqe_cq_id = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]); + if (aeq_info & NES_AEQE_QP) { + if ((!nes_is_resource_allocated(nesadapter, nesadapter->allocated_qps, + aeqe_cq_id)) || + (atomic_read(&nesqp->close_timer_started))) + return; + } + switch (async_event_id) { case NES_AEQE_AEID_LLP_FIN_RECEIVED: if (nesqp->term_flags) |