nvme: lightnvm: return ppa completion status

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PPAs sent to device is separately acknowledge in a 64bit status
variable. The status is stored in DW0 and DW1 of the completion queue
entry. Store this status inside the nvm_rq for further processing.

This can later be used to implement retry techniques for failed writes
and reads.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>

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Matias Bjorling 2016-03-03 15:06:39 +01:00 • committed by Jens Axboe

parent da1e284919

commit 9f86726843

2 changed files with 16 additions and 2 deletions

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17

drivers/nvme/host/lightnvm.c

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1

include/linux/lightnvm.h

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