linux-kernel - Re: [PATCH rdma-next] RDMA/rdmavt: Decouple QP and SGE lists allocations

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Message-ID: <1ceb34ec-eafb-697e-672c-17f9febb2e82@cornelisnetworks.com>
Date:   Wed, 19 May 2021 15:49:31 -0400
From:   Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>
To:     Jason Gunthorpe <jgg@...dia.com>
Cc:     Leon Romanovsky <leon@...nel.org>,
        "Marciniszyn, Mike" <mike.marciniszyn@...nelisnetworks.com>,
        Doug Ledford <dledford@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>
Subject: Re: [PATCH rdma-next] RDMA/rdmavt: Decouple QP and SGE lists
 allocations

On 5/19/21 2:29 PM, Jason Gunthorpe wrote:
> On Wed, May 19, 2021 at 07:56:32AM -0400, Dennis Dalessandro wrote:
> 
>> Perhaps the code can be enhanced to move more stuff into the driver's own
>> structs as Jason points out, but that should happen first. For now I still
>> don't understand why the core can't optionally make the allocation per node.
> 
> Because I think it is wrong in the general case to assign all
> allocations to a single node?

If by general case you mean for all drivers, sure, totally agree. We 
aren't talking about all drivers though, just the particular case of rdmavt.

-Denny