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Subject: RE: FC - NPIV in 2.6.23-rc2
Date: Thu, 30 Aug 2007 16:46:38 -0700
Message-ID: <CD3B36223A7B9F40A6FE6BAAC4E2DA61D72006@AVEXCH1.qlogic.org>
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Thread-Topic: FC - NPIV in 2.6.23-rc2
Thread-Index: AcfrNrY8MGvNotmTS+eZ4vqhjWmzgAAFl+TQ
References: <c7d75baf0708300849g27a5e4c3wba73b960a89a85e5@mail.gmail.com> <46D6EFE7.40802@qlogic.com> <7579f7fb0708300947r4bae76a8j3715316741f3563f@mail.gmail.com>
From: "Duane Grigsby" <duane.grigsby@qlogic.com>
To: "Matthew Jacob" <lydianconcepts@gmail.com>,
       "Seokmann Ju" <seokmann.ju@qlogic.com>
Cc: "Abhishek Kane" <abhishek.kane@gmail.com>, <linux-kernel@vger.kernel.org>,
       "Linux Driver" <Linux-Driver@qlogic.com>, <linux-scsi@vger.kernel.org>
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-----Original Message-----
From: Matthew Jacob [mailto:lydianconcepts@gmail.com] 
Sent: Thursday, August 30, 2007 9:47 AM
To: Seokmann Ju
Cc: Abhishek Kane; linux-kernel@vger.kernel.org; Linux Driver;
linux-scsi@vger.kernel.org
Subject: Re: FC - NPIV in 2.6.23-rc2

> > some sought of documentation for this, please let me know.
> NPIV is a feature to provide multiple path available on one physical
port and it has implemented based on the multiport ID (MID) capability
on the switch.
> So, you have to have the switch with MID capable on the configuration
to support NPIV, besides the controller.
>

>> No, if the switch doesn't suport NP-IV, the 24XX f/w will come up in
>> Public Loop mode (FL).
Yes, NPIV is optional, if the switch is NPIV capable then you can create
virtual ports, otherwise it works as it does today. NPIV is a standard
technology that allows sharing a single physical Fabric port (N-port)
among multiple virtual fabric ports. Multiple ID(s) is a HBA feature
that allows multiple virtual Loop ID(s) on a public or private loop
topology.