[PATCH blktests] nvme/rc: specify hostnqn to hostid to nvme discover and connect

[Chaitanya Kulkarni]

Shinichiro/Max,

On 6/28/2023 5:43 AM, Shin'ichiro Kawasaki wrote:
> From: Max Gurtovoy <mgurtovoy at nvidia.com>
> 
> After the kernel commit ae8bd606e09b ("nvme-fabrics: prevent overriding
> of existing host"), 'nvme discover' and 'nvme connect' commands fail
> when pair of hostid and hostnqn is not provide. This caused failure of
> many test cases in the nvme group with kernel messages "nvme_fabrics:
> found same hostid XXX but different hostnqn YYY".
> 
> To avoid the failure, specify valid hostnqn and hostid to the nvme
> commands always. Prepare def_hostnqn and def_hostid even when
> /etc/nvme/hostnqn or /etc/nvme/hostid is not available. Using these
> values, add --hostnqn and --hostid options to the nvme commands in
> _nvme_discover() and _nvme_connect_subsys().
> 
> Reported-by: Yi Zhang <yi.zhang at redhat.com>
> Link: https://lore.kernel.org/linux-nvme/CAHj4cs_qUWzetD0203EKbBLNv3KF=qgTLsWLeHN3PY7UE6mzmw@mail.gmail.com/
> Signed-off-by: Max Gurtovoy <mgurtovoy at nvidia.com>
> Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki at wdc.com>

Thanks for fixing this quickly.

I've tested this patch on my setup where there was no errors.

With this patch all the testecases are passing on my non-broken setup,
but please wait for Yi's Tested-by tag before applying the patch.

with that :-

Tested-by: Chaitanya Kulkarni <kch at nvidia.com>
Reviewed-by: Chaitanya Kulkarni <kch at nvidia.com>

-ck