linux-kernel - Re: [PATCH blktests v1 2/3] nvme/rc: Avoid triggering host nvme-cli autoconnect

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Message-ID: <4b17be94-d068-f026-756f-59208075e254@nvidia.com>
Date:   Thu, 13 Jul 2023 13:50:30 +0300
From:   Max Gurtovoy <mgurtovoy@...dia.com>
To:     Daniel Wagner <dwagner@...e.de>, Hannes Reinecke <hare@...e.de>,
        g@...bon.lan
Cc:     linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-block@...r.kernel.org, Chaitanya Kulkarni <kch@...dia.com>,
        Shin'ichiro Kawasaki <shinichiro.kawasaki@....com>,
        Sagi Grimberg <sagi@...mberg.me>,
        James Smart <jsmart2021@...il.com>,
        Martin Belanger <Martin.Belanger@...l.com>
Subject: Re: [PATCH blktests v1 2/3] nvme/rc: Avoid triggering host nvme-cli
 autoconnect



On 13/07/2023 13:44, Daniel Wagner wrote:
> On Thu, Jul 13, 2023 at 12:30:45PM +0200, Daniel Wagner wrote:
>> On Thu, Jul 13, 2023 at 12:14:14PM +0200, Hannes Reinecke wrote:
>>>> Exposing the subsystem is from the target configuration side.
>>>> Additionally, the --context (which is in the initiator/host side),
>>>> according to Daniel, is there to distinguish between different
>>>> invocations. I proposed that blktests subsystem will not be part of
>>>> discoverable fabric or protected somehow by access list. Therefore, no
>>>> additional invocation will happen.
>>
>> I am confused. This is exactly what the whole --context thing is.
> 
> Ah I think I got it now. You want me to set allow_hosts on the target side too
> :)

Yes.
With the unique hostId/hostNqn for blktests this should work without the 
need for --context mechanism, that was probably added for system 
administrators and not for unit_testing/QA/Verification engineers that 
run blktests.