[PATCH blktests v5 0/4] test queue count changes on reconnect

[Daniel Wagner]

The target is allowed to change the number of i/o queues. test if the
host is able to reconnect in this scenario.

I was able to test this successfully with tcp and rdma. fc still fails due to
the race condition in the target code.

Next attempt to get this series upstream :)

This version is based on my previous posted nvme/047 patches [1]

[1] https://lore.kernel.org/linux-nvme/20230329090202.8351-1-dwagner@suse.de/

v5:
 - moved generic parts to nvme/rc
 - renamed test to 048
 - rebased ontop of nvme/047
v4:
 - do not remove ports instead depend on host removing
   controllers, see
   https://lore.kernel.org/linux-nvme/20220927143157.3659-1-dwagner@suse.de/
 - https://lore.kernel.org/linux-nvme/20220927143719.4214-1-dwagner@suse.de/
v3:
 - Added comment why at least 2 CPUs are needed for the test
 - Fixed shell quoting in _set_nvmet_attr_qid_max
 - https://lore.kernel.org/linux-nvme/20220913065758.134668-1-dwagner@suse.de/
v2:
 - detect if attr_qid_max is available
 - https://lore.kernel.org/linux-block/20220831153506.28234-1-dwagner@suse.de/
v1:
 - https://lore.kernel.org/linux-block/20220831120900.13129-1-dwagner@suse.de/


Daniel Wagner (4):
  nvme/rc: Add setter for attr_qid_max
  nvme/rc: Add nvmet attribute feature detection function
  nvme/rc: Add helper to wait for nvme ctrl state
  nvme/048: test queue count changes on reconnect

 tests/nvme/048     | 81 ++++++++++++++++++++++++++++++++++++++++++++++
 tests/nvme/048.out |  3 ++
 tests/nvme/rc      | 58 +++++++++++++++++++++++++++++++++
 3 files changed, 142 insertions(+)
 create mode 100755 tests/nvme/048
 create mode 100644 tests/nvme/048.out

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2.40.0