From: akepner@sgi.com
To: Matthew Wilcox <matthew@wil.cx>
Cc: Jes Sorensen <jes@sgi.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
rdreier@cisco.com, linux-ia64 <linux-ia64@vger.kernel.org>
Subject: Re: [PATCH 2/3] dma: override "dma_flags_set_dmaflush" for sn-ia64
Date: Tue, 21 Aug 2007 21:37:07 +0000 [thread overview]
Message-ID: <20070821213707.GH5592@sgi.com> (raw)
In-Reply-To: <20070821201631.GF9163@parisc-linux.org>
On Tue, Aug 21, 2007 at 02:16:32PM -0600, Matthew Wilcox wrote:
>
> So, let me try to understand ... your hardware allows writes from the
> device to pass other writes from the device? Doesn't that violate the
> PCI spec? I'm thinking about this (page 43 of PCI 2.3):
> ....
I should have stated this more carefully, but it's not a PCI reordering
that's being addressed here, it's a reordering that can occur within
the NUMA-interconnect.
--
Arthur
WARNING: multiple messages have this Message-ID (diff)
From: akepner@sgi.com
To: Matthew Wilcox <matthew@wil.cx>
Cc: Jes Sorensen <jes@sgi.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
rdreier@cisco.com, linux-ia64 <linux-ia64@vger.kernel.org>
Subject: Re: [PATCH 2/3] dma: override "dma_flags_set_dmaflush" for sn-ia64
Date: Tue, 21 Aug 2007 14:37:07 -0700 [thread overview]
Message-ID: <20070821213707.GH5592@sgi.com> (raw)
In-Reply-To: <20070821201631.GF9163@parisc-linux.org>
On Tue, Aug 21, 2007 at 02:16:32PM -0600, Matthew Wilcox wrote:
>
> So, let me try to understand ... your hardware allows writes from the
> device to pass other writes from the device? Doesn't that violate the
> PCI spec? I'm thinking about this (page 43 of PCI 2.3):
> ....
I should have stated this more carefully, but it's not a PCI reordering
that's being addressed here, it's a reordering that can occur within
the NUMA-interconnect.
--
Arthur
next prev parent reply other threads:[~2007-08-21 21:37 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-18 0:27 [PATCH 2/3] dma: override "dma_flags_set_dmaflush" for sn-ia64 akepner
2007-08-20 8:24 ` Jes Sorensen
2007-08-20 8:24 ` Jes Sorensen
2007-08-20 16:07 ` akepner
2007-08-20 16:07 ` akepner
2007-08-21 19:35 ` akepner
2007-08-21 19:35 ` akepner
2007-08-21 20:05 ` Randy Dunlap
2007-08-21 20:05 ` Randy Dunlap
2007-08-21 20:55 ` James Bottomley
2007-08-21 20:55 ` James Bottomley
2007-08-22 0:34 ` akepner
2007-08-22 0:34 ` akepner
2007-08-22 1:14 ` James Bottomley
2007-08-22 1:14 ` James Bottomley
2007-08-22 7:39 ` Jes Sorensen
2007-08-22 7:39 ` Jes Sorensen
2007-08-22 14:02 ` James Bottomley
2007-08-22 14:02 ` James Bottomley
2007-08-22 16:03 ` Jesse Barnes
2007-08-22 16:03 ` Jesse Barnes
2007-08-22 16:44 ` James Bottomley
2007-08-22 16:44 ` James Bottomley
2007-08-22 16:51 ` Jesse Barnes
2007-08-22 16:51 ` Jesse Barnes
2007-08-22 17:04 ` James Bottomley
2007-08-22 17:04 ` James Bottomley
2007-08-22 17:03 ` Jes Sorensen
2007-08-22 17:03 ` Jes Sorensen
2007-08-22 18:10 ` James Bottomley
2007-08-22 18:10 ` James Bottomley
2007-08-23 8:45 ` Jes Sorensen
2007-08-23 8:45 ` Jes Sorensen
2007-08-22 17:17 ` Jesse Barnes
2007-08-22 17:17 ` Jesse Barnes
2007-08-22 18:13 ` James Bottomley
2007-08-22 18:13 ` James Bottomley
2007-08-22 18:44 ` akepner
2007-08-22 18:44 ` akepner
2007-08-23 5:58 ` Jeremy Higdon
2007-08-23 5:58 ` Jeremy Higdon
2007-08-22 15:54 ` akepner
2007-08-22 15:54 ` akepner
2007-08-21 20:16 ` Matthew Wilcox
2007-08-21 20:16 ` Matthew Wilcox
2007-08-21 21:37 ` akepner [this message]
2007-08-21 21:37 ` akepner
2007-08-22 7:44 ` Jes Sorensen
2007-08-22 7:44 ` Jes Sorensen
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