From: Manu Abraham <abraham.manu@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: rdreier@cisco.com, greg@kroah.com,
linux-pci@atrey.karlin.mff.cuni.cz, linux-kernel@vger.kernel.org
Subject: Re: PCIE
Date: Sun, 27 May 2007 02:57:49 +0400 [thread overview]
Message-ID: <4658BB6D.5030603@gmail.com> (raw)
In-Reply-To: <20070526.154910.78725926.davem@davemloft.net>
David Miller wrote:
> From: Manu Abraham <abraham.manu@gmail.com>
> Date: Sat, 26 May 2007 19:03:12 +0400
>
>> i presume then i shouldn't be using IRQF_SHARED, if using MSI.
>
> That's actually a really good question.
>
> It is likely architecture dependant whether the PCI controller wires
> unique MSI interrupts to shared cpu interrupt lines.
>
> I can imagine many systems where the cpu simply doesn't have enough
> interrupt pins to uniquely identify every possible MSI interrupt
> source.
>
Ok, that explains it a bit, but i am pulling out a bit of hair on the
other aspects i wrote in this thread, of course i am a bit new to PCIe
and hence all my questions/doubts. Hope someone can clear them.
Thanks,
Manu
next prev parent reply other threads:[~2007-05-26 22:58 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-23 12:15 PCIE Manu Abraham
2007-05-23 15:59 ` PCIE Greg KH
2007-05-23 20:59 ` PCIE Manu Abraham
2007-05-23 21:10 ` PCIE Roland Dreier
2007-05-23 22:11 ` PCIE Manu Abraham
2007-05-23 22:23 ` PCIE Roland Dreier
2007-05-23 23:03 ` PCIE Manu Abraham
2007-05-23 23:51 ` PCIE Roland Dreier
2007-05-24 0:07 ` PCIE Manu Abraham
2007-05-24 22:32 ` PCIE Manu Abraham
2007-05-25 3:25 ` PCIE Roland Dreier
2007-05-26 15:03 ` PCIE Manu Abraham
2007-05-26 18:28 ` PCIE Grant Grundler
2007-05-26 19:27 ` PCIE Manu Abraham
2007-05-28 1:15 ` PCIE Roland Dreier
2007-05-28 1:25 ` PCIE Manu Abraham
2007-05-28 2:04 ` PCIE Manu Abraham
2007-05-28 2:24 ` PCIE Roland Dreier
2007-05-28 2:47 ` PCIE Manu Abraham
2007-05-26 22:49 ` PCIE David Miller
2007-05-26 22:57 ` Manu Abraham [this message]
2007-05-26 23:55 ` PCIE Grant Grundler
2007-05-27 0:00 ` PCIE David Miller
2007-05-27 0:16 ` PCIE Grant Grundler
2007-05-27 0:30 ` PCIE David Miller
2007-05-27 1:01 ` PCIE Manu Abraham
2007-05-27 1:49 ` PCIE Grant Grundler
2007-05-27 20:28 ` PCIE Manu Abraham
2007-05-28 1:10 ` PCIE Roland Dreier
2007-05-27 2:34 ` PCIE H. Peter Anvin
2007-05-27 7:40 ` PCIE David Miller
2007-05-27 20:31 ` PCIE Manu Abraham
2007-05-28 1:05 ` PCIE Roland Dreier
2007-05-28 1:03 ` PCIE Roland Dreier
2007-05-28 2:54 ` PCIE David Miller
2007-05-28 4:18 ` PCIE Grant Grundler
2007-05-28 5:23 ` PCIE H. Peter Anvin
2007-05-28 5:22 ` PCIE H. Peter Anvin
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