[PATCH blktests 05/11] nvme/rc: introduce NVMET_TR_TYPES

[Daniel Wagner]

On Thu, Apr 11, 2024 at 08:12:22PM +0900, Shin'ichiro Kawasaki wrote:
> Some of the test cases in nvme test group can be run under various nvme
> target transport types. The configuration parameter nvme_trtype
> specifies the transport to use. But this configuration method has two
> drawbacks. Firstly, the blktests check script needs to be invoked
> multiple times to cover multiple transport types. Secondly, the test
> cases irrelevant to the transport types are executed exactly same
> conditions in the multiple blktests runs.
> 
> To avoid the drawbacks, introduce new configuration parameter
> NVMET_TR_TYPES. This is an array, and multiple transport types can
> be set like:
> 
>     NVMET_TR_TYPES=(loop tcp)
> 
> Also introduce _nvmet_set_nvme_trtype() which can be called from the
> set_conditions() hook of the transport type dependent test cases.
> Blktests will repeat the test case as many as the number of elements in
> NVMET_TR_TYPES, and set nvme_trtype for each test case run.

I suggest to keep the naming of the variable consistent, e.g.
NVMET_TRTYPES.