From: Pratyush Anand <pratyush.anand@st.com>
To: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Jingoo Han <jg1.han@samsung.com>,
'Bjorn Helgaas' <bhelgaas@google.com>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"linux-samsung-soc@vger.kernel.org"
<linux-samsung-soc@vger.kernel.org>,
'Kukjin Kim' <kgene.kim@samsung.com>,
Mohit KUMAR DCG <Mohit.KUMAR@st.com>,
'Arnd Bergmann' <arnd@arndb.de>, 'Sean Cross' <xobs@kosagi.com>,
'Thierry Reding' <thierry.reding@gmail.com>,
'SRIKANTH TUMKUR SHIVANAND' <ts.srikanth@samsung.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Subject: Re: [PATCH V3] pci: exynos: split into two parts such as Synopsys part and Exynos part
Date: Thu, 12 Sep 2013 16:16:02 +0530 [thread overview]
Message-ID: <20130912104602.GC5995@pratyush-vbox> (raw)
In-Reply-To: <20130912101803.GB5995@pratyush-vbox>
On Thu, Sep 12, 2013 at 03:48:03PM +0530, Pratyush Anand wrote:
> On Thu, Sep 12, 2013 at 06:07:23PM +0800, Kishon Vijay Abraham I wrote:
> > Hi,
> >
> > On Thursday 12 September 2013 03:22 PM, Pratyush Anand wrote:
> > > Hi Kishon,
> > >
> > > On Thu, Sep 12, 2013 at 05:43:40PM +0800, Kishon Vijay Abraham I wrote:
> > >> Hi,
> > >>
> > >> On Thursday 12 September 2013 03:00 PM, Pratyush Anand wrote:
> > >>> Hi Jingoo,
> > >>>
> > >>>
> > >>> On Thu, Sep 12, 2013 at 03:15:04PM +0800, Jingoo Han wrote:
> > >>>> On Tuesday 23 July 2013 12:30 PM, Kishon Vijay Abraham I wrote:
> > >>>>>>> .
> > >>>>>>> .
>
> [...]
>
> > >> 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?
> > >
> > > A PCIe analyser log would tell a definite cause. Most likely either
> > > inbound translation is not working or INTx/MSI is not working.
> >
> > I have enabled only legacy interrupts. Whenever I connect or disconnect
> > ethernet cable I get link up/link down message and also the interrupt count for
> > eth0 increases. So I'm not doubting INTx interrupts as such.
Just a question, what is the MRRS of your RC? if it is 128, can you
try with passing pci=pcie_bus_peer2peer in your bootargs.
Again, analyser will help a lot in diagnosing such issues.
Regards
Pratyush
> >
> > btw configuring inbound translation once in dw_pcie_host_init enough is it? I
> > mean we use the same registers for configuring outbound translation also no? So
> > doesn't the inbound configuration gets lost?
>
> No, you write at the same register, but you program direction as
> inbound. There are different resources for each viewport in inbound
> and outbound direction.
>
> Regards
> Pratyush
>
> >
> > Thanks
> > Kishon
next prev parent reply other threads:[~2013-09-12 10:46 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-18 5:21 [PATCH V3] pci: exynos: split into two parts such as Synopsys part and Exynos part Jingoo Han
2013-07-22 15:03 ` Kishon Vijay Abraham I
2013-07-23 1:14 ` Jingoo Han
2013-07-23 4:49 ` Pratyush Anand
2013-07-23 6:29 ` Kishon Vijay Abraham I
2013-07-23 7:00 ` Jingoo Han
2013-07-24 21:02 ` Arnd Bergmann
2013-09-12 6:34 ` Kishon Vijay Abraham I
2013-09-12 7:15 ` Jingoo Han
2013-09-12 9:30 ` Pratyush Anand
2013-09-12 9:43 ` Kishon Vijay Abraham I
2013-09-12 9:52 ` Pratyush Anand
2013-09-12 10:07 ` Kishon Vijay Abraham I
2013-09-12 10:18 ` Pratyush Anand
2013-09-12 10:46 ` Pratyush Anand [this message]
2013-09-12 11:14 ` Kishon Vijay Abraham I
2013-09-21 14:56 ` Kishon Vijay Abraham I
[not found] ` <523DB38B.4070307-l0cyMroinI0@public.gmane.org>
2013-09-21 22:03 ` Arnd Bergmann
[not found] ` <201309220003.34732.arnd-r2nGTMty4D4@public.gmane.org>
2013-09-22 11:16 ` Kishon Vijay Abraham I
2013-09-23 4:14 ` Pratyush Anand
2013-09-23 5:32 ` Kishon Vijay Abraham I
[not found] ` <523FD286.608-l0cyMroinI0@public.gmane.org>
2013-09-23 6:50 ` Pratyush Anand
2013-09-24 21:23 ` Arnd Bergmann
2013-09-26 5:06 ` Kishon Vijay Abraham I
2013-09-26 9:51 ` Arnd Bergmann
[not found] ` <201309261151.42034.arnd-r2nGTMty4D4@public.gmane.org>
2013-09-26 10:12 ` Kishon Vijay Abraham I
2013-09-12 10:25 ` Jingoo Han
2013-07-23 8:42 ` Jingoo Han
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