From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Lukas Wunner <lukas@wunner.de>
Cc: Bjorn Helgaas <helgaas@kernel.org>,
linux-pci@vger.kernel.org, linux-wireless@vger.kernel.org,
zajec5@gmail.com, b43-dev@lists.infradead.org,
Matt Fleming <matt@codeblueprint.co.uk>,
linux-efi@vger.kernel.org
Subject: Re: [PATCH] PCI: Add Broadcom 4331 reset quirk to prevent IRQ storm
Date: Wed, 6 Apr 2016 23:19:43 +0100 [thread overview]
Message-ID: <20160406221943.GA10955@srcf.ucam.org> (raw)
In-Reply-To: <20160406213029.GA12421@wunner.de>
On Wed, Apr 06, 2016 at 11:30:29PM +0200, Lukas Wunner wrote:
> Matthew's grub patch puts the wireless card into D3hot, which does not
> stop the interrupts. I have tested this. (It may stop the DMA, I cannot
> verify that as it doesn't occur on my machine for lack of an access point.)
Ah, interesting. One thing to note (and which I've just noticed) is that
it looks like this fixup is only called when you boot with the "linux"
command and not with the "linuxefi" command. If you're using Ubuntu,
"linux" may fall back to "linuxefi" without executing this fixup. So we
need to add it to the kernel EFI stub anyway.
--
Matthew Garrett | mjg59@srcf.ucam.org
WARNING: multiple messages have this Message-ID (diff)
From: Matthew Garrett <mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
To: Lukas Wunner <lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
Cc: linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Matt Fleming
<matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>,
linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Bjorn Helgaas <helgaas-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
b43-dev-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH] PCI: Add Broadcom 4331 reset quirk to prevent IRQ storm
Date: Wed, 6 Apr 2016 23:19:43 +0100 [thread overview]
Message-ID: <20160406221943.GA10955@srcf.ucam.org> (raw)
In-Reply-To: <20160406213029.GA12421-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
On Wed, Apr 06, 2016 at 11:30:29PM +0200, Lukas Wunner wrote:
> Matthew's grub patch puts the wireless card into D3hot, which does not
> stop the interrupts. I have tested this. (It may stop the DMA, I cannot
> verify that as it doesn't occur on my machine for lack of an access point.)
Ah, interesting. One thing to note (and which I've just noticed) is that
it looks like this fixup is only called when you boot with the "linux"
command and not with the "linuxefi" command. If you're using Ubuntu,
"linux" may fall back to "linuxefi" without executing this fixup. So we
need to add it to the kernel EFI stub anyway.
--
Matthew Garrett | mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org
WARNING: multiple messages have this Message-ID (diff)
From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Lukas Wunner <lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
Cc: linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Matt Fleming
<matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>,
linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Bjorn Helgaas <helgaas-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
b43-dev-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: [PATCH] PCI: Add Broadcom 4331 reset quirk to prevent IRQ storm
Date: Wed, 6 Apr 2016 23:19:43 +0100 [thread overview]
Message-ID: <20160406221943.GA10955@srcf.ucam.org> (raw)
In-Reply-To: <20160406213029.GA12421@wunner.de>
On Wed, Apr 06, 2016 at 11:30:29PM +0200, Lukas Wunner wrote:
> Matthew's grub patch puts the wireless card into D3hot, which does not
> stop the interrupts. I have tested this. (It may stop the DMA, I cannot
> verify that as it doesn't occur on my machine for lack of an access point.)
Ah, interesting. One thing to note (and which I've just noticed) is that
it looks like this fixup is only called when you boot with the "linux"
command and not with the "linuxefi" command. If you're using Ubuntu,
"linux" may fall back to "linuxefi" without executing this fixup. So we
need to add it to the kernel EFI stub anyway.
--
Matthew Garrett | mjg59 at srcf.ucam.org
next prev parent reply other threads:[~2016-04-06 22:57 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-29 18:20 [PATCH] PCI: Add Broadcom 4331 reset quirk to prevent IRQ storm Lukas Wunner
2016-03-31 18:51 ` Rafał Miłecki
2016-03-31 18:51 ` Rafał Miłecki
2016-04-05 19:40 ` Bjorn Helgaas
2016-04-05 19:40 ` Bjorn Helgaas
2016-04-05 19:49 ` Michael Büsch
2016-04-05 19:49 ` Michael Büsch
2016-04-06 13:31 ` Bjorn Helgaas
2016-04-06 13:31 ` Bjorn Helgaas
2016-04-06 15:17 ` Michael Büsch
2016-04-06 15:17 ` Michael Büsch
2016-04-06 21:36 ` Lukas Wunner
2016-04-06 21:36 ` Lukas Wunner
2016-04-05 19:59 ` Matthew Garrett
2016-04-05 19:59 ` Matthew Garrett
2016-04-06 11:28 ` Andrew Worsley
2016-04-06 11:28 ` Andrew Worsley
2016-04-06 21:30 ` Lukas Wunner
2016-04-06 21:30 ` Lukas Wunner
2016-04-06 21:30 ` Lukas Wunner
2016-04-06 22:19 ` Matthew Garrett [this message]
2016-04-06 22:19 ` Matthew Garrett
2016-04-06 22:19 ` Matthew Garrett
2016-04-09 12:00 ` Matt Fleming
2016-04-09 12:00 ` Matt Fleming
2016-04-24 16:58 ` Lukas Wunner
2016-04-24 16:58 ` Lukas Wunner
[not found] <E1akxli-00030z-BC@bombadil.infradead.org>
2016-03-31 23:13 ` Chris Bainbridge
2016-03-31 23:13 ` Chris Bainbridge
2016-04-01 4:59 ` Michael Büsch
2016-04-01 4:59 ` Michael Büsch
2016-04-01 22:46 ` Lukas Wunner
2016-04-01 22:46 ` Lukas Wunner
2016-04-02 7:30 ` Michael Büsch
2016-04-02 7:30 ` Michael Büsch
2016-04-02 11:40 ` Andrew Worsley
2016-04-03 11:49 ` Lukas Wunner
2016-04-03 11:49 ` Lukas Wunner
2016-04-07 12:04 ` Andrew Worsley
2016-04-07 12:04 ` Andrew Worsley
2016-04-10 10:09 ` Andrew Worsley
2016-04-10 10:09 ` Andrew Worsley
2016-04-12 18:32 ` Lukas Wunner
2016-04-12 18:32 ` Lukas Wunner
2016-04-13 20:42 ` Andrew Worsley
2016-04-13 20:42 ` Andrew Worsley
2016-04-24 17:04 ` Lukas Wunner
2016-04-24 17:04 ` Lukas Wunner
2016-05-23 14:42 ` Lukas Wunner
2016-05-23 14:42 ` Lukas Wunner
2016-05-24 23:38 ` Chris Bainbridge
2016-05-24 23:38 ` Chris Bainbridge
[not found] <E1akxli-00030z-Jz@bombadil.infradead.org>
2016-03-31 19:09 ` Michael Büsch
2016-03-31 19:09 ` Michael Büsch
-- strict thread matches above, loose matches on Subject: below --
2016-03-29 17:46 Lukas Wunner
2016-03-29 17:46 ` Lukas Wunner
2016-03-29 17:41 Lukas Wunner
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