From: Mark Lord <liml@rtr.ca>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Jens Axboe <axboe@suse.de>,
IDE/ATA development list <linux-ide@vger.kernel.org>,
James Bottomley <James.Bottomley@steeleye.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: libata+SGIO: is .dma_boundary respected?
Date: Tue, 21 Mar 2006 14:31:16 -0500 [thread overview]
Message-ID: <44205484.9000702@rtr.ca> (raw)
In-Reply-To: <4420541E.3070303@pobox.com>
Jeff Garzik wrote:
>
>> In the case of sata_mv on the Marvell 6081 (which I'm looking at this
>> week)
>> it's hardware limit is actually 0xffffffff rather than 0xffff.
>
> If the limit is not 0xffff, then there's no need for any of this
> limitation junk. No s/g entry splitting after pci_map_sg(), no
> artificial sg_tablesize limitation, etc.
Not even for a merged IOMMU segment that crosses the 4GB "boundary" ?
next prev parent reply other threads:[~2006-03-21 19:31 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-19 20:48 libata+SGIO: is .dma_boundary respected? Mark Lord
2006-03-19 21:14 ` Jeff Garzik
2006-03-19 21:19 ` Mark Lord
2006-03-19 21:38 ` Jeff Garzik
2006-03-19 21:45 ` Mark Lord
2006-03-19 21:54 ` Mark Lord
2006-03-21 1:18 ` Jeff Garzik
2006-03-21 4:43 ` Mark Lord
2006-03-21 6:14 ` Jeff Garzik
2006-03-21 13:59 ` Mark Lord
2006-03-21 18:42 ` Jens Axboe
2006-03-21 19:18 ` Mark Lord
2006-03-21 19:29 ` Jeff Garzik
2006-03-21 19:31 ` Mark Lord [this message]
2006-03-21 19:33 ` Mark Lord
2006-03-21 19:35 ` Jens Axboe
2006-03-21 19:38 ` Jeff Garzik
2006-03-21 19:42 ` Jens Axboe
2006-03-21 19:43 ` James Bottomley
2006-03-21 19:46 ` Jens Axboe
2006-03-21 20:44 ` James Bottomley
2006-03-21 21:54 ` Benjamin Herrenschmidt
2006-03-21 19:31 ` Jens Axboe
2006-03-21 19:36 ` Mark Lord
2006-03-21 19:43 ` Jeff Garzik
2006-03-21 20:51 ` Mark Lord
2006-03-22 11:25 ` Tejun Heo
2006-03-22 14:52 ` Mark Lord
2006-03-21 1:15 ` Jeff Garzik
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