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/openbmc/linux/drivers/nvme/host/ |
H A D | fc.c | 041018c6 Mon Mar 12 11:32:22 CDT 2018 James Smart <jsmart2021@gmail.com> nvme_fc: io timeout should defer abort to ctrl reset
The current nvme_fc code, when an io times out, will abort the io on the fc link, then call the error recovery routine to reset the controller. It is during the reset of the controller that the transport will wait for all ios to be aborted before sending a Disconnect LS to the target.
However, the reset routine only waits for the io which it generates the abort for to complete. Any io that was aborted just prior to the reset isn't in it's list to wait for. Thus the Disconnect is getting sent before the aborts have completed.
Correct by removing the abort in the timeout handler. The reset will generate the abort. At that point the timeout handler can be simplified to request the reset (via the error handler) and restart the timeout timer.
Also fixes a small typo in a comment in the reset handler.
Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> 041018c6 Mon Mar 12 11:32:22 CDT 2018 James Smart <jsmart2021@gmail.com> nvme_fc: io timeout should defer abort to ctrl reset The current nvme_fc code, when an io times out, will abort the io on the fc link, then call the error recovery routine to reset the controller. It is during the reset of the controller that the transport will wait for all ios to be aborted before sending a Disconnect LS to the target. However, the reset routine only waits for the io which it generates the abort for to complete. Any io that was aborted just prior to the reset isn't in it's list to wait for. Thus the Disconnect is getting sent before the aborts have completed. Correct by removing the abort in the timeout handler. The reset will generate the abort. At that point the timeout handler can be simplified to request the reset (via the error handler) and restart the timeout timer. Also fixes a small typo in a comment in the reset handler. Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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