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author | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-06-05 23:27:53 (GMT) |
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committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-06-06 21:20:23 (GMT) |
commit | b3e5fe1688b998ba5287a68667ef7cc568739e44 (patch) | |
tree | 5d7a9999d5cfc92ff4cd4ccc50d1ebea95f41334 /ipc | |
parent | 1d2b60a5545942b1376cb48c1d55843d71e3a08f (diff) | |
download | linux-b3e5fe1688b998ba5287a68667ef7cc568739e44.tar.xz |
tcm_fc: Generate TASK_SET_FULL status for DataIN failures
This patch changes ft_queue_data_in() to set SAM_STAT_TASK_SET_FULL
status upon a lport->tt.seq_send() failure, where it will now stop
sending subsequent DataIN, and immediately attempt to send the
response with exception status.
Sending a response with SAM_STAT_TASK_SET_FULL status is useful in
order to signal the initiator that it should try to reduce it's
current queue_depth, to lower the number of outstanding I/Os on
the wire.
Also, add a check to skip sending DataIN if TASK_SET_FULL status
has already been set due to a response lport->tt.seq_send()
failure, that has asked target-core to requeue a response.
Reported-by: Vasu Dev <vasu.dev@linux.intel.com>
Reviewed-by: Vasu Dev <vasu.dev@linux.intel.com>
Cc: Jun Wu <jwu@stormojo.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'ipc')
0 files changed, 0 insertions, 0 deletions