From: Nicholas Bellinger <n...@linux-iscsi.org> Hi Vasu,
This series generates SAM_STAT_TASK_SET_FULL status for lport->tt.seq_send() failures in DataIN + response status codepaths, which is done in order to get the initiator to reduce it's current queue_depth thus reducing the number of outstanding I/Os permitted in flight on the wire. For the DataIN case, once a lport->tt.seq_send() failure occurs it will stop attempting to send subsequent DataIN payload data, and immediately attempt to send a response packet with SAM_STAT_TASK_SET_FULL status. For the response case, once a lport->tt.seq_send() failure occurs it will set SAM_STAT_TASK_SET_FULL status and return -ENOMEM to the target, forcing the response to be requeued by target-core Note this series has been compile tested only, so please review + test. Thank you, --nab Nicholas Bellinger (2): tcm_fc: Generate TASK_SET_FULL status for DataIN failures tcm_fc: Generate TASK_SET_FULL status for response failures drivers/target/tcm_fc/tfc_cmd.c | 19 ++++++++++++++++--- drivers/target/tcm_fc/tfc_io.c | 14 +++++++++++++- 2 files changed, 29 insertions(+), 4 deletions(-) -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
