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authorNicholas Bellinger <[email protected]>2016-03-04 22:30:52 -0800
committerNicholas Bellinger <[email protected]>2016-03-10 22:36:12 -0800
commit4347ab5a086efcba449e7a6f0a14d1474060006b (patch)
tree431fe7029258a79e4f3c73df8ecf0ece784770a6 /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py
parent32c76de3466ed2a875e36c140ac4e3800fdfab6e (diff)
target: Avoid DataIN transfers for non-GOOD SAM status
This patch modifies existing transport_complete_*() code to avoid invoking target_core_fabric_ops->queue_data_in() driver callbacks for I/O READs with non-GOOD SAM status. Some initiators expect GOOD status when a DATA-IN payload transfer is involved, so to be safe go ahead and always invoke target_core_fabric_ops->queue_status() to generate fabric responses instead. Note this is a prerequisite for IBLOCK supporting retriable status, so SAM_STAT_BUSY + SAM_STAT_TASK_SET_FULL always generates fabric driver responses instead of initiating DataIN payload transfer when non-GOOD status is present Reviewed-by: Christoph Hellwig <[email protected]> Cc: Hannes Reinecke <[email protected]> Cc: Sagi Grimberg <[email protected]> Cc: Andy Grover <[email protected]> Cc: Mike Christie <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
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