From: "Michael Chan" <mchan@broadcom.com>
To: "David Miller" <davem@davemloft.net>
Cc: jeff@garzik.org, "netdev" <netdev@vger.kernel.org>
Subject: Re: [PATCH 10/11][TG3]: Reduce spurious interrupts.
Date: Sat, 05 May 2007 17:15:02 -0700 [thread overview]
Message-ID: <1178410502.4859.46.camel@dell> (raw)
In-Reply-To: <20070504.204700.24899658.davem@davemloft.net>
On Fri, 2007-05-04 at 20:47 -0700, David Miller wrote:
> From: "Michael Chan" <mchan@broadcom.com>
> Date: Fri, 4 May 2007 19:50:10 -0700
>
> > In a small number of cases, we really get a ton of spurious interrupts.
> > We have even seen the kernel shutting off IRQ7 because of too many
> > unclaimed spurious interrupts.
>
> Ok, that's a big problem.
>
> In retrospect the read back is only needed on non-MSI
> right? I guess that'd be ok.
>
Right, not needed in MSI as MSI is considered an edge interrupt. I will
resubmit a new patch to just flush the mailbox.
next prev parent reply other threads:[~2007-05-05 23:27 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-05 0:55 [PATCH 10/11][TG3]: Reduce spurious interrupts Michael Chan
2007-05-05 0:42 ` Jeff Garzik
2007-05-05 1:45 ` Michael Chan
2007-05-05 2:42 ` David Miller
2007-05-05 2:50 ` Michael Chan
2007-05-05 3:47 ` David Miller
2007-05-06 0:15 ` Michael Chan [this message]
2007-05-06 0:19 ` [PATCH revised 10/11][TG3]: Eliminate " Michael Chan
2007-05-07 7:26 ` David Miller
2007-05-06 0:21 ` [PATCH revised 11/11][TG3]: Update version and reldate Michael Chan
2007-05-07 7:26 ` David Miller
2007-05-07 16:39 ` [PATCH 10/11][TG3]: Reduce spurious interrupts Rick Jones
[not found] ` <1178562469.4859.70.camel@dell>
2007-05-07 17:44 ` Rick Jones
2007-05-07 18:41 ` Michael Chan
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