What if there is no Process Login?
Bob.Snively at EBay.Sun.COM
Fri Dec 17 09:42:32 PST 1999
* From the T10 Reflector (t10 at t10.org), posted by:
* Bob Snively <Bob.Snively at EBay.Sun.COM>
Whoa, Major disconnect.
In the FCP protocol, FCP responses are expected. You are now telling
me that PRLO is a valid response in an FCP exchange. I do not believe that
is correct. While you may want to PRLO, you should do it in a separate
exchange, which is an ELS exchange. You want to end the original
exchange with an ABTS or ABTX.
>Subject: RE: What if there is no Process Login?
>Date: Thu, 16 Dec 1999 16:50:13 -0800
>> -----Original Message-----
>> From: Binford, Charles [mailto:charles.binford at lsil.com]
>> You can't send P_RJT in class 3. That is why PLDA came up with the
>> and send a PRLO". I disagree with the statement that this is not "PH
>> compliant". Section 15.12.1 of FS describes operation of PRLO and it
>> "following PRLO execution, all active Sequences are terminated by
>> Abort Sequence (ABTS) protocol." So, in the scenario in question:
>> - Initiator sends FCP_CMND to target without a PRLI
>> - Target receives the command, detects no PRLI and sends PRLO
>> (no rules in PH about when you may send PRLO - PLDA added this
>> rule to fill in this gap).
>> - Initiator receives the PRLO and (following PH rules) sends ABTS to
>> the FCP_CMND exchange.
>> (note PH is not specific as to which port shall initiate the ABTS -
>> following normal FCP behavior I believe the initiator should - he sent
>> So, since PRLI behavior is an FC-4 specific thing, I believe
>> this IS an
>> FCP-2 issue and it should be solved the same way PLDA did.
>> (if it ain't broke......)
>I agree with Charles.
>jeff stai, QLogic corp.
>3545 harbor blvd, costa mesa, ca 92626
>j_stai at qlc.com http://www.qlc.com/
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