Re: qla2xxx use without ACLs

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On Thu, 2013-07-18 at 16:47 -0700, Andy Grover wrote:
> Hi target-devel,
> 
> Craig wants to use LIO as FC target without needing to input ACLs for 
> initiators. See:
> 
> https://lists.fedorahosted.org/pipermail/targetcli-fb-devel/2013-July/000016.html
> 
> I'm not a qla expert, but I'm a little suspicious of this:
> 
> tcm_qla2xxx.c: .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_true,
> 
> qla2xxx is the only fabric to have this callback. Is getting things 
> working as simple as setting that function pointer to 
> tcm_qla_2xxx_check_false? What's the intended purpose of that callback?
> 

The reason that tpg_check_demo_mode_login_only exists for tcm_qla2xxx is
to allow FC initiators to be able to always complete FLOGI + establish a
session, regardless of the current TPG generate_node_acls attribute
setting.

This is a work-around to address bugs in older RHEL6 FC clients that
cause the FC LLD to go into a endless loop if FLOGI is not able to
complete, and get an INQUIRY response w/ NOT CONNECTED status.

--nab

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