From: Raimonds Cicans <ray@apollo.lv>
To: linux-kernel@vger.kernel.org
Subject: Questions about IOMMU & PCIe switch
Date: Wed, 07 Jan 2015 06:06:44 +0200 [thread overview]
Message-ID: <54ACB0D4.3000008@apollo.lv> (raw)
Hello.
We have two kinds of PCIe cards:
A1 - based on chip B
A2 - based on same chip B but behind PCIe switch
Card A1 work flawlessly in any configuration,
but card A2 work flawlessly only if system
lack IOMMU or have disabled IOMMU
Questions:
Do we have to treat card with PCIe switch in special way?
How?
Where (PCI bridge driver? card's driver?)?
Any examples in kernel?
Thank you.
Raimonds Cicans
next reply other threads:[~2015-01-07 4:21 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-07 4:06 Raimonds Cicans [this message]
2015-01-07 12:09 ` Questions about IOMMU & PCIe switch Clemens Ladisch
2015-01-07 14:04 ` Raimonds Cicans
2015-01-08 8:34 ` Clemens Ladisch
2015-01-08 15:05 ` Raimonds Cicans
2015-01-08 15:32 ` Manu Abraham
-- strict thread matches above, loose matches on Subject: below --
2015-01-15 12:54 Luis Alves
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