From: Andi Kleen <ak@suse.de>
To: Roland Dreier <roland@topspin.com>
Cc: Andi Kleen <ak@suse.de>,
Grant Grundler <grundler@parisc-linux.org>,
Greg KH <gregkh@suse.de>, Jeff Garzik <jgarzik@pobox.com>,
"David S. Miller" <davem@davemloft.net>,
tom.l.nguyen@intel.com, linux-pci@atrey.karlin.mff.cuni.cz,
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] PCI: remove access to pci_[enable|disable]_msi() for drivers - take 2
Date: Thu, 9 Jun 2005 16:03:51 +0200 [thread overview]
Message-ID: <20050609140351.GD23831@wotan.suse.de> (raw)
In-Reply-To: <52oeagethh.fsf@topspin.com>
On Wed, Jun 08, 2005 at 08:52:26AM -0700, Roland Dreier wrote:
> Andi> x86-64 will eventually too, I definitely plan for it at some
> Andi> point. We need it for very big machines where 255 interrupt
> Andi> vectors are not enough. And as you say with MSI-X it becomes
> Andi> even more important.
>
> MSI-X already works fine on x86-64. For example, on the machine I'm
Yes, but only as long as you dont have too many devices. The problem
is that there are only 255 interrupt vectors right now, and that
is not enough for bigger systems with many devices.
> sending this from, an Athlon64 system with Nforce 4 (and yes I am
> using IP-over-InfiniBand as the only network connection on my workstation):
A single CPU box does not even appear on the radar here.
-Andi
next prev parent reply other threads:[~2005-06-09 14:04 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20050608060242.GA8035@mellanox.co.il>
2005-06-07 0:20 ` [RFC PATCH] PCI: remove access to pci_[enable|disable]_msi() for drivers Greg KH
2005-06-07 1:09 ` Andrew Vasquez
2005-06-07 5:15 ` Greg KH
2005-06-07 7:31 ` Arjan van de Ven
2005-06-07 16:08 ` Grant Grundler
2005-06-07 16:10 ` Greg KH
2005-06-07 20:41 ` Arjan van de Ven
2005-06-07 22:08 ` Greg KH
2005-06-07 22:43 ` Roland Dreier
2005-06-08 4:42 ` Grant Grundler
2005-06-08 13:34 ` Andi Kleen
2005-06-08 13:37 ` Andi Kleen
2005-06-08 17:04 ` Grant Grundler
2005-06-09 4:54 ` Stefan Smietanowski
2005-06-09 5:26 ` Greg KH
2005-06-07 15:53 ` Grant Grundler
2005-06-07 16:12 ` Greg KH
2005-06-07 20:21 ` [RFC PATCH] PCI: remove access to pci_[enable|disable]_msi() for drivers - take 2 Greg KH
2005-06-07 22:17 ` Jeff Garzik
2005-06-08 5:55 ` Andrew Grover
2005-06-08 6:14 ` Jeff Garzik
2005-06-08 6:18 ` Jeff Garzik
2005-06-08 13:35 ` Andi Kleen
2005-06-08 15:57 ` Roland Dreier
2005-06-08 5:02 ` Grant Grundler
2005-06-08 13:32 ` Andi Kleen
2005-06-08 15:52 ` Roland Dreier
2005-06-09 14:03 ` Andi Kleen [this message]
2005-06-08 16:09 ` Ashok Raj
2005-06-09 1:37 ` Zwane Mwaikambo
2005-06-09 14:11 ` Andi Kleen
2005-06-09 15:58 ` Ashok Raj
2005-06-08 15:47 ` Roland Dreier
2005-06-08 13:31 ` Andi Kleen
2005-06-08 17:56 ` Greg KH
2005-06-08 15:18 ` Luben Tuikov
2005-06-08 18:47 ` Michael S. Tsirkin
2005-06-07 22:40 Nguyen, Tom L
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