linux-kernel - Re: [PATCH] ibmvfc: add new fields for version 2 of several MADs

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Message-ID: <c94f0f87-1863-9c0a-3561-4cbc9330e011@linux.ibm.com>
Date:   Tue, 27 Oct 2020 14:52:09 -0700
From:   Tyrel Datwyler <tyreld@...ux.ibm.com>
To:     "Martin K. Petersen" <martin.petersen@...cle.com>
Cc:     james.bottomley@...senpartnership.com, linux-scsi@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        brking@...ux.ibm.com
Subject: Re: [PATCH] ibmvfc: add new fields for version 2 of several MADs

On 10/26/20 6:56 PM, Martin K. Petersen wrote:
> 
> Tyrel,
> 
>> Introduce a targetWWPN field to several MADs. Its possible that a scsi
>> ID of a target can change due to some fabric changes. The WWPN of the
>> scsi target provides a better way to identify the target. Also, add
>> flags for receiving MAD versioning information and advertising client
>> support for targetWWPN with the VIOS. This latter capability flag will
>> be required for future clients capable of requesting multiple hardware
>> queues from the host adapter.
> 
> Applied to 5.11/scsi-staging, thanks!
> 

Hi Martin,

I'm going to have to ask that this patch be unstaged.

After some clarification from our VIOS folks I made the assumption that the MAD
size was staying the same and new fields just used up existing reserved padding.
Turns out they chose to keep the same amount of padding increasing the size of
those structures. So, this patch needs to be reworked.

Sorry about that,

-Tyrel