From: Matthias Mann <M.Mann@arkona-technologies.de>
To: Matthias Mann <m.mann@arkona-technologies.de>
Cc: Harro Haan <hrhaan@gmail.com>, Mohit Kumar <mohit.kumar@st.com>,
Jingoo Han <jg1.han@samsung.com>, Marek Vasut <marex@denx.de>,
Pratyush Anand <pratyush.anand@st.com>,
Arnd Bergmann <arnd@arndb.de>,
Siva Reddy Kallam <siva.kallam@samsung.com>,
Richard Zhu <hong-xing.zhu@freescale.com>,
linux-pci@vger.kernel.org, Tim Harvey <tharvey@gateworks.com>,
Srikanth T Shivanand <ts.srikanth@samsung.com>,
Bjorn Helgaas <bhelgaas@google.com>, Sean Cross <xobs@kosagi.com>,
Shawn Guo <shawn.guo@linaro.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] pci: designware: fix missing msi irqs
Date: Fri, 13 Dec 2013 09:42:35 +0100 [thread overview]
Message-ID: <52AAC87B.6000007@arkona-technologies.de> (raw)
In-Reply-To: <52AA0EB2.2070701@arkona-technologies.de>
Am 12.12.2013 20:29, schrieb Matthias Mann:
> Am 12.12.2013 19:29, schrieb Harro Haan:
>> The interrupts were cleared after the irq handler was called.
>> This means that new interrupts that occur after the handler handled
>> the previous irq but before the interrupt is cleared will be missed.
>
> I discovered the same issue today. I'll test that patch tomorrow.
>
I tested this patch on our custom i.MX6 board with an Altera FPGA as PCIe
device and it fixed the missed MSI interrupts.
Tested-by: Matthias Mann <m.mann@arkona-technologies.de>
Regards
Matthias Mann
--
Matthias Mann
Research & Development
Phone: +49 (0) 6155 7802883
Fax: +49 (0) 6155 7802880
Email: M.Mann@arkona-technologies.de
<mailto:M.Mann@arkona-technologies.de>
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WARNING: multiple messages have this Message-ID (diff)
From: M.Mann@arkona-technologies.de (Matthias Mann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] pci: designware: fix missing msi irqs
Date: Fri, 13 Dec 2013 09:42:35 +0100 [thread overview]
Message-ID: <52AAC87B.6000007@arkona-technologies.de> (raw)
In-Reply-To: <52AA0EB2.2070701@arkona-technologies.de>
Am 12.12.2013 20:29, schrieb Matthias Mann:
> Am 12.12.2013 19:29, schrieb Harro Haan:
>> The interrupts were cleared after the irq handler was called.
>> This means that new interrupts that occur after the handler handled
>> the previous irq but before the interrupt is cleared will be missed.
>
> I discovered the same issue today. I'll test that patch tomorrow.
>
I tested this patch on our custom i.MX6 board with an Altera FPGA as PCIe
device and it fixed the missed MSI interrupts.
Tested-by: Matthias Mann <m.mann@arkona-technologies.de>
Regards
Matthias Mann
--
Matthias Mann
Research & Development
Phone: +49 (0) 6155 7802883
Fax: +49 (0) 6155 7802880
Email: M.Mann at arkona-technologies.de
<mailto:M.Mann@arkona-technologies.de>
Web: www.arkona-technologies.de <http://www.arkona-technologies.de>
arkona technologies GmbH
Im Leuschnerpark 4
64347 Griesheim
Germany
Amtsgericht / Commercial Register of Darmstadt, HRB 90080
USt-ID: DE273794666
Steuernummer / Tax-ID: 007 / 228 / 19331
Gesch?ftsf?hrung / Managing Director: Rainer Sturm
This e-mail may contain confidential and/or privileged information. If you are
not the intended recipient (or have received this e-mail in error) please notify
the sender immediately and delete this message and any attachments from your
system. Any unauthorised copying, disclosure or distribution of the material in
this e-mail is strictly forbidden.
We cannot accept any responsibility for the accuracy or completeness of this
message as it has been transmitted over a public network. If, despite our use of
anti-virus software, a virus enters your systems in connection with the sending
of the e-mail, you may not hold us liable for any damages that may possibly
arise in that connection. We will accept liability which by law we cannot exclude.
next prev parent reply other threads:[~2013-12-13 8:42 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-12 18:29 [PATCH] pci: designware: fix missing msi irqs Harro Haan
2013-12-12 19:29 ` Matthias Mann
2013-12-12 19:29 ` Matthias Mann
2013-12-13 8:42 ` Matthias Mann [this message]
2013-12-13 8:42 ` Matthias Mann
2013-12-12 22:01 ` Marek Vasut
2013-12-12 22:01 ` Marek Vasut
2013-12-16 0:54 ` Jingoo Han
2013-12-16 0:54 ` Jingoo Han
2013-12-16 6:48 ` Mohit KUMAR DCG
2013-12-16 6:48 ` Mohit KUMAR DCG
2013-12-20 2:41 ` Jingoo Han
2013-12-20 2:41 ` Jingoo Han
2013-12-20 16:09 ` Bjorn Helgaas
2013-12-20 16:09 ` Bjorn Helgaas
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