From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Joerg Roedel <joerg.roedel@amd.com>
Cc: Arjan van de Ven <arjan@infradead.org>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
iommu@lists.linux-foundation.org,
David Woodhouse <dwmw2@infradead.org>,
Muli Ben-Yehuda <muli@il.ibm.com>,
Amit Shah <amit.shah@qumranet.com>,
Ingo Molnar <mingo@redhat.com>,
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Subject: Re: [PATCH 0/9][RFC] stackable dma_ops for x86
Date: Mon, 22 Sep 2008 19:41:28 -0700 [thread overview]
Message-ID: <48D85758.7080303@goop.org> (raw)
In-Reply-To: <20080922183944.GJ24392@amd.com>
Joerg Roedel wrote:
> Its implemented using the per-device dma-ops already there. With this
> patches there is a list of available dma_ops implementations which are
> asked in a particular order if they can handle the device. The first
> implementation which returns true is assigned to the device as the
> per-device dma_ops structure.
>
> (Hmm, maybe the name stackable is misleading, is "dma_ops multiplexing"
> better?)
Is per-device the right level? Wouldn't per-bus make more sense? How
does a dma_ops implementation "know" whether it can handle a particular
device?
(I haven't had a chance to read the patches yet.)
J
next prev parent reply other threads:[~2008-09-23 2:41 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-22 18:21 [PATCH 0/9][RFC] stackable dma_ops for x86 Joerg Roedel
2008-09-22 18:21 ` [PATCH 1/9] x86/iommu: add necessary types for stackable dma_ops Joerg Roedel
2008-09-22 18:21 ` [PATCH 2/9] x86/iommu: add stackable dma_ops registration interface Joerg Roedel
2008-09-22 18:21 ` [PATCH 3/9] x86/iommu: change PCI-NOMMU to use dma_ops register interface Joerg Roedel
2008-09-22 18:21 ` [PATCH 4/9] x86/iommu: change SWIOTLB " Joerg Roedel
2008-09-22 18:21 ` [PATCH 5/9] x86/iommu: change GART " Joerg Roedel
2008-09-22 18:21 ` [PATCH 6/9] x86/iommu: change Calgary " Joerg Roedel
2008-09-23 14:37 ` Muli Ben-Yehuda
2008-09-30 11:10 ` Ingo Molnar
2008-09-30 11:58 ` Joerg Roedel
2008-09-30 13:30 ` Muli Ben-Yehuda
2008-09-30 15:38 ` Ingo Molnar
2008-09-30 18:33 ` Muli Ben-Yehuda
2008-09-22 18:21 ` [PATCH 7/9] x86/iommu: change AMD IOMMU " Joerg Roedel
2008-09-22 18:21 ` [PATCH 8/9] x86/iommu: change Intel " Joerg Roedel
2008-09-22 18:21 ` [PATCH 9/9] x86/iommu: use dma_ops_list in get_dma_ops Joerg Roedel
2008-09-26 7:56 ` Amit Shah
2008-09-26 8:59 ` Joerg Roedel
2008-09-26 10:49 ` Amit Shah
2008-09-26 12:32 ` Joerg Roedel
2008-09-27 0:13 ` Muli Ben-Yehuda
2008-09-28 19:13 ` Joerg Roedel
2008-09-29 9:30 ` Muli Ben-Yehuda
2008-09-29 9:36 ` Joerg Roedel
2008-09-29 13:16 ` FUJITA Tomonori
2008-09-29 13:33 ` Joerg Roedel
2008-09-30 19:44 ` Muli Ben-Yehuda
2008-10-01 7:19 ` Joerg Roedel
2008-10-03 8:38 ` Muli Ben-Yehuda
2008-09-26 11:00 ` Joerg Roedel
2008-09-28 14:21 ` FUJITA Tomonori
2008-09-28 18:44 ` Joerg Roedel
2008-09-29 9:25 ` Muli Ben-Yehuda
2008-09-29 9:29 ` Joerg Roedel
2008-09-22 18:36 ` [PATCH 0/9][RFC] stackable dma_ops for x86 Arjan van de Ven
2008-09-22 18:39 ` Joerg Roedel
2008-09-23 2:41 ` Jeremy Fitzhardinge [this message]
2008-09-23 2:50 ` Arjan van de Ven
2008-09-28 14:21 ` FUJITA Tomonori
2008-09-28 18:49 ` Joerg Roedel
2008-09-29 13:16 ` FUJITA Tomonori
2008-09-29 13:26 ` Joerg Roedel
2008-09-29 13:42 ` FUJITA Tomonori
2008-09-29 13:51 ` Joerg Roedel
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