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/openbmc/linux/drivers/nvme/host/ |
H A D | fc.c | 78a7ac26 Sun Apr 23 10:30:07 CDT 2017 James Smart <jsmart2021@gmail.com> nvme_fc: add aen abort to teardown
Add abort support for aens. Commonized the op abort to apply to aen or real ios (caused some reorg/routine movement). Abort path sets termination flag in prep for next patch that will be watching i/o abort completion before proceeding with controller teardown.
Now that we're aborting aens, the "exit" code that simply cleared out their context no longer applies.
Also clarified how we detect an AEN vs a normal io - by a flag, not by whether a rq exists or the a rqno is out of range.
Note: saw some interesting cases where if the queues are stopped and we're waiting for the aborts, the core layer can call the complete_rq callback for the io. So the io completion synchronizes link side completion with possible blk layer completion under error.
Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> 78a7ac26 Sun Apr 23 10:30:07 CDT 2017 James Smart <jsmart2021@gmail.com> nvme_fc: add aen abort to teardown Add abort support for aens. Commonized the op abort to apply to aen or real ios (caused some reorg/routine movement). Abort path sets termination flag in prep for next patch that will be watching i/o abort completion before proceeding with controller teardown. Now that we're aborting aens, the "exit" code that simply cleared out their context no longer applies. Also clarified how we detect an AEN vs a normal io - by a flag, not by whether a rq exists or the a rqno is out of range. Note: saw some interesting cases where if the queues are stopped and we're waiting for the aborts, the core layer can call the complete_rq callback for the io. So the io completion synchronizes link side completion with possible blk layer completion under error. Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
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