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: <20070130100649.GB8548@infradead.org>
Date:	Tue, 30 Jan 2007 10:06:49 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	Olof Johansson <olof@...om.net>
Cc:	Francois Romieu <romieu@...zoreil.com>, jgarzik@...ox.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH] PA Semi PWRficient Ethernet driver

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.

-
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