linux-kernel - Re: the XSK buffer pool needs be to reverted

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Message-ID: <f049b82a-4c69-c021-8988-78d757169247@intel.com>
Date:   Fri, 26 Jun 2020 14:45:49 +0200
From:   Björn Töpel <bjorn.topel@...el.com>
To:     Christoph Hellwig <hch@....de>
Cc:     "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        bpf <bpf@...r.kernel.org>,
        Maxim Mikityanskiy <maximmi@...lanox.com>,
        "Karlsson, Magnus" <magnus.karlsson@...el.com>,
        Björn Töpel <bjorn.topel@...il.com>
Subject: Re: the XSK buffer pool needs be to reverted

On 2020-06-26 14:41, Christoph Hellwig wrote:
> On Fri, Jun 26, 2020 at 02:22:41PM +0200, Björn Töpel wrote:
[...]
>>
>> Understood. Wdyt about something in the lines of the diff below? It's
>> build tested only, but removes all non-dma API usage ("poking
>> internals"). Would that be a way forward, and then as a next step work
>> on a solution that would give similar benefits, but something that would
>> live in the dma mapping core?
> 
> Yes, that would solve the immediate issues.
> 

Good. I'll cook a proper patch and post it.


Björn