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scsi: ibmvfc: Use correlation token to tag commands
The vfcFrame correlation field is a 64bit handle that is intended to trace I/O operations through both the client stack and VIOS stack when the underlying physical FC adapter supports tagging. Tag vfcFrames with the associated ibmvfc_event pointer handle. Link: https://lore.kernel.org/r/20201117185031.129939-3-tyreld@linux.ibm.com Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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1 changed files with 4 additions and 0 deletions
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@ -1693,6 +1693,8 @@ static int ibmvfc_queuecommand_lck(struct scsi_cmnd *cmnd,
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vfc_cmd->iu.pri_task_attr = IBMVFC_SIMPLE_TASK;
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}
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vfc_cmd->correlation = cpu_to_be64(evt);
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if (likely(!(rc = ibmvfc_map_sg_data(cmnd, evt, vfc_cmd, vhost->dev))))
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return ibmvfc_send_event(evt, vhost, 0);
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@ -2370,6 +2372,8 @@ static int ibmvfc_abort_task_set(struct scsi_device *sdev)
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tmf->iu.tmf_flags = IBMVFC_ABORT_TASK_SET;
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evt->sync_iu = &rsp_iu;
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tmf->correlation = cpu_to_be64(evt);
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init_completion(&evt->comp);
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rsp_rc = ibmvfc_send_event(evt, vhost, default_timeout);
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}
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