From: Christoph Hellwig <hch@infradead.org>
To: Roland Dreier <roland@topspin.com>
Cc: Christoph Hellwig <hch@infradead.org>, netdev@oss.sgi.com
Subject: Re: [PATCH][6/12][RFC/v1] Add IPoIB (IP-over-InfiniBand) driver
Date: Mon, 22 Nov 2004 20:04:39 +0000 [thread overview]
Message-ID: <20041122200439.GA9635@infradead.org> (raw)
In-Reply-To: <521xelemsm.fsf@topspin.com>
On Mon, Nov 22, 2004 at 10:55:21AM -0800, Roland Dreier wrote:
> Christoph> That just means avoidable interface changes sooner or
> Christoph> later. The dma_ interfaces also have the added benefit
> Christoph> of allowing better control of the type of consistant
> Christoph> allocation interface.
>
> Is there a dma_xxx equivalent to DECLARE_PCI_UNMAP_ADDR(),
> pci_unmap_addr_set() and friends, or does a driver always have to save
> off the DMA address from dma_map_xxx?
Good question. In pratice I can't find a case were DECLARE_PCI_UNMAP_ADDR()
wouldn't simply work for dma_*, but we should probably document that
somewhere.
next prev parent reply other threads:[~2004-11-22 20:04 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200411181046.6Dz1IPtDKfpgSXN9@topspin.com>
2004-11-18 18:46 ` [PATCH][6/12][RFC/v1] Add IPoIB (IP-over-InfiniBand) driver Roland Dreier
2004-11-18 18:48 ` Roland Dreier
2004-11-18 20:00 ` Christoph Hellwig
2004-11-18 20:07 ` Roland Dreier
2004-11-22 15:14 ` Roland Dreier
2004-11-22 15:34 ` Christoph Hellwig
2004-11-22 15:37 ` Roland Dreier
2004-11-22 18:55 ` Roland Dreier
2004-11-22 20:04 ` Christoph Hellwig [this message]
2004-11-22 20:16 ` Roland Dreier
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