linux-kernel - Re: [PATCH V3] pci: exynos: split into two parts such as Synopsys part and Exynos part

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Date:	Thu, 12 Sep 2013 19:25:59 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Kishon Vijay Abraham I' <kishon@...com>,
	'Pratyush Anand' <pratyush.anand@...com>
Cc:	'Bjorn Helgaas' <bhelgaas@...gle.com>, linux-pci@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org,
	'Kukjin Kim' <kgene.kim@...sung.com>,
	'Mohit KUMAR DCG' <Mohit.KUMAR@...com>,
	'Arnd Bergmann' <arnd@...db.de>,
	'Sean Cross' <xobs@...agi.com>,
	'Thierry Reding' <thierry.reding@...il.com>,
	'SRIKANTH TUMKUR SHIVANAND' <ts.srikanth@...sung.com>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	'Jingoo Han' <jg1.han@...sung.com>
Subject: Re: [PATCH V3] pci: exynos: split into two parts such as Synopsys part
 and Exynos part

On Thursday, September 12, 2013 6:44 PM, Kishon Vijay Abraham I wrote:
> On Thursday 12 September 2013 03:00 PM, Pratyush Anand wrote:
> >
> > From this conversation, It seems that you
> > have tested this driver and it works fine without inbound translation
> > function. I am sure that you would have tested a PCIe card with DMA
> > capability such as PCIe2USB or PCIe2Ethernet. Since it worked, it
> > means that by default your controller is supporting one to one mapping
> > in case of inbound transaction even when address translation is enabled.
> 
> btw, I'm testing Ethernet controller: Realtek Semiconductor Co., Ltd.
> RTL8111/8168B PCI Express Gigabit Ethernet controller.
> 
> when I do ifconfig eth0 up, I get *r8169 0000:01:00.0 eth0: link up.*
> But I dont receive any packets and ping also fails and the tx and rx packet
> count is also 0. Could it be related to inbound translation?
> 

Hi Kishon,

I have tested Ethernet controller: Intel Corporation 82574L PCI Express
Gigabit Ethernet controller.

Without inbound translation, it works properly with both legacy interrupt
mode and MSI mode.

Best regards,
Jingoo Han


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