netdev - Re: [PATCH] r8169: default to 64-bit DMA on systems without memory below 4 GB

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Message-ID: <20160511214801.GA11929@electric-eye.fr.zoreil.com>
Date:	Wed, 11 May 2016 23:48:01 +0200
From:	Francois Romieu <romieu@...zoreil.com>
To:	Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc:	"<netdev@...r.kernel.org>" <netdev@...r.kernel.org>,
	Ricardo Salveti <ricardo.salveti@...aro.org>,
	Leo Duran <leo.duran@....com>,
	G Gregory <graeme.gregory@...aro.org>,
	Realtek linux nic maintainers <nic_swsd@...ltek.com>
Subject: Re: [PATCH] r8169: default to 64-bit DMA on systems without memory
 below 4 GB

Ard Biesheuvel <ard.biesheuvel@...aro.org> :
> On 11 May 2016 at 22:31, Francois Romieu <romieu@...zoreil.com> wrote:
[...]
> It has little to do with f*cking legacy 32-bits-only-devices if DRAM
> simply starts at 0x80_0000_0000. This is on an AMD arm64 chip.

The lack of IOMMU surprizes me.

[...]
> OK, if you prefer. Should I send a v2?

Don't bother unless someones comes with a more substantial request.

-- 
Ueimor