linux-kernel - Re: [PATCH 2.6.20.3] Flush writes to MSI-X table

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Message-ID: <adak5x6m69r.fsf@cisco.com>
Date:	Sat, 24 Mar 2007 19:00:32 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	Greg KH <gregkh@...e.de>
Cc:	"Kok, Auke" <auke-jan.h.kok@...el.com>,
	"Williams, Mitch A" <mitch.a.williams@...el.com>,
	linux-kernel@...r.kernel.org, mingo@...hat.com,
	"Ronciak, John" <john.ronciak@...el.com>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>
Subject: Re: [PATCH 2.6.20.3] Flush writes to MSI-X table

 > I don't understand your need to try to rush an api change like this in
 > so quickly in an area that has a lot of churn and disagreement lately.
 > _Especially_ so late in the release cycle, and with no hardware publicly
 > availble.

I'm not sure I understood this thread properly, but if I did understand
correctly then this bug affects IRQ balancing on any device with MSI-X
enabled.  In which case, there's plenty of publicly available hardware
with MSI-X support (including drivers in the mainline tree for a long
time).  A quick grep for pci_enable_msix finds plenty of drivers using
MSI-X now: cciss, ib_mthca, cxgb3, forcedeth, s2io, qla2xxx.

 - R.
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