netdev - Re: [PATCH] PA Semi PWRficient Ethernet driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20070130153409.GA25309@lixom.net>
Date:	Tue, 30 Jan 2007 09:34:09 -0600
From:	olof@...om.net (Olof Johansson)
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Francois Romieu <romieu@...zoreil.com>, jgarzik@...ox.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH] PA Semi PWRficient Ethernet driver

On Tue, Jan 30, 2007 at 10:06:49AM +0000, Christoph Hellwig wrote:
> On Mon, Jan 29, 2007 at 07:41:16PM -0600, Olof Johansson wrote:
> > Maybe a bit of introduction could be useful (also regarding the
> > pci_map/alloc comments below).
> > 
> > Our devices are on-chip, and while they're not on a PCI(e) bus internally,
> > they do have config headers and will show up as devices on a pseudo-bus
> > (the root one, in fact).
> > 
> > Also, while the driver could go through the IOMMU layers, there's no
> > real use in doing so at this time.
> 
> sorry, but bypassing this is not what what we want in drivers at all.
> In case you have an iommu and don't want it on the root bus chose
> the noop dma implementation for this bus, which is easily possible on
> powerpc.

Good point, I'll do that instead.


-Olof
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html