From mboxrd@z Thu Jan  1 00:00:00 1970
From: sagi grimberg <sagig@mellanox.com>
Subject: Re: [PATCH 2/4] tcm_qla2xxx: T10-Dif set harware capability
Date: Wed, 2 Apr 2014 13:26:23 +0300
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To: "Nicholas A. Bellinger" <nab@linux-iscsi.org>, Sagi Grimberg <sagig@dev.mellanox.co.il>
Cc: Quinn Tran <quinn.tran@qlogic.com>, "target-devel@vger.kernel.org" <target-devel@vger.kernel.org>, linux-scsi <linux-scsi@vger.kernel.org>, Giridhar Malavali <giridhar.malavali@qlogic.com>, Saurav Kashyap <saurav.kashyap@qlogic.com>, Andrew Vasquez <andrew.vasquez@qlogic.com>
List-Id: linux-scsi@vger.kernel.org

On 4/1/2014 8:40 PM, Nicholas A. Bellinger wrote:
> <SNIP>
>> So no way to get it centralized?
> Yes, still working on how that might look..
>
>>   I still don't understand the iscsi/iser constraint.
> Every other fabric aside from iscsi/iser could simply provide a
> TFO->get_fabric_prot(se_tpg) to query for supported PI.
>
> The reason why iscsi/iser is unique is because we can have different
> network portals (eg: iser protected + traditional iscsi unprotected) on
> the same se_tpg endpoint.

I see. That seems solvable to me... perhaps the easiest thing is to just 
go ahead and support T10-PI
in iscsi-tcp (SW)...

Sagi.