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scsi: be2iscsi: Fix bad WRB index error
In very rare scenario, connection gets killed after throwing this error: scsi host0: BM_2312 : Event CXN_KILLED_BAD_WRB_INDEX_ERROR[15]... CID : 4 connection1:0: detected conn error (1011) memset ISCSI_WRB descriptor to zero for all allocations of WRB handle. Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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commit
e1f9d31eb3
1 changed files with 7 additions and 13 deletions
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@ -967,6 +967,7 @@ beiscsi_get_wrb_handle(struct hwi_wrb_context *pwrb_context,
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else
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pwrb_context->alloc_index++;
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spin_unlock_bh(&pwrb_context->wrb_lock);
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memset(pwrb_handle->pwrb, 0, sizeof(*pwrb_handle->pwrb));
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return pwrb_handle;
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}
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@ -1209,11 +1210,10 @@ hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn,
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struct beiscsi_hba *phba, struct sol_cqe *psol)
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{
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struct hwi_wrb_context *pwrb_context;
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struct wrb_handle *pwrb_handle = NULL;
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struct hwi_controller *phwi_ctrlr;
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struct iscsi_task *task;
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struct beiscsi_io_task *io_task;
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uint16_t wrb_index, cid, cri_index;
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struct hwi_controller *phwi_ctrlr;
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struct wrb_handle *pwrb_handle;
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struct iscsi_task *task;
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phwi_ctrlr = phba->phwi_ctrlr;
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if (is_chip_be2_be3r(phba)) {
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@ -1232,9 +1232,6 @@ hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn,
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pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
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pwrb_handle = pwrb_context->pwrb_handle_basestd[wrb_index];
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task = pwrb_handle->pio_handle;
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io_task = task->dd_data;
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memset(io_task->pwrb_handle->pwrb, 0, sizeof(struct iscsi_wrb));
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iscsi_put_task(task);
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}
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@ -4295,16 +4292,12 @@ beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn,
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io_task = task->dd_data;
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if (io_task->pwrb_handle) {
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memset(io_task->pwrb_handle->pwrb, 0,
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sizeof(struct iscsi_wrb));
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free_wrb_handle(phba, pwrb_context,
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io_task->pwrb_handle);
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free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle);
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io_task->pwrb_handle = NULL;
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}
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if (io_task->psgl_handle) {
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free_mgmt_sgl_handle(phba,
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io_task->psgl_handle);
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free_mgmt_sgl_handle(phba, io_task->psgl_handle);
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io_task->psgl_handle = NULL;
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}
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@ -4341,6 +4334,7 @@ static void beiscsi_cleanup_task(struct iscsi_task *task)
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pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs,
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io_task->bhs_pa.u.a64.address);
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io_task->cmd_bhs = NULL;
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task->hdr = NULL;
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}
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if (task->sc) {
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