[PATCHv2 0/2] nvme: honor DNR status for authentication

[Hannes Reinecke]

Hi all,

when sending authentication commands we should be checking the DNR bit
in the cqe status to figure out if a command should be retried.
So the first patch will evaluate the DNR bit during _nvme_submit_sync_cmd()
and initiate a retry, and the second patch will set the DNR bit in
the nvme authentication code such that we don't attempt to retry the
'connect' operation.
I have opened pull request #100 for blktests to validate this behaviour.

As usual, comments and reviews are welcome.

Hannes Reinecke (2):
  nvme-auth: retry command if DNR bit is not set
  nvme-auth: set the DNR bit if authentication failed

 drivers/nvme/host/auth.c    | 22 +++++++++++-----------
 drivers/nvme/host/core.c    | 20 ++++++++++++++++++--
 drivers/nvme/host/fabrics.c |  4 ++--
 include/linux/blk-mq.h      |  2 ++
 4 files changed, 33 insertions(+), 15 deletions(-)

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2.35.3