From: "Michael Büsch" <m@bues.ch>
To: Thommy Jakobsson <thommyj@gmail.com>
Cc: linville@tuxdriver.com, linux-wireless@vger.kernel.org,
b43-dev@lists.infradead.org, Larry.Finger@lwfinger.net
Subject: [PATCH] B43: Handle DMA RX descriptor underrun
Date: Thu, 2 May 2013 15:06:03 +0200 [thread overview]
Message-ID: <20130502150603.2ac36385@milhouse> (raw)
In-Reply-To: <alpine.DEB.2.02.1304231851040.1513@kelly.ryd.net>
On Tue, 23 Apr 2013 21:45:11 +0200 (CEST)
Thommy Jakobsson <thommyj@gmail.com> wrote:
> From: Thommy Jakobsson <thommyj@gmail.com>
>
> Add handling of rx descriptor underflow. This fixes a fault that could
> happen on slow machines, where data is received faster than the CPU can
> handle. In such a case the device will use up all rx descriptors and
> refuse to send any more data before confirming that it is ok. This
> patch enables necessary interrupt to discover such a situation and will
> handle them by dropping everything in the ring buffer.
>
> Reviewed-by: Michael Buesch <m@bues.ch>
> Signed-off-by: Thommy Jakobsson <thommyj@gmail.com>
> Cc: stable <stable@vger.kernel.org>
Anybody interested in porting this to b43legacy (and testing)?
--
Michael
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From: "Michael Büsch" <m@bues.ch>
To: Thommy Jakobsson <thommyj@gmail.com>
Cc: linville@tuxdriver.com, linux-wireless@vger.kernel.org,
b43-dev@lists.infradead.org, Larry.Finger@lwfinger.net
Subject: Re: [PATCH] B43: Handle DMA RX descriptor underrun
Date: Thu, 2 May 2013 15:06:03 +0200 [thread overview]
Message-ID: <20130502150603.2ac36385@milhouse> (raw)
In-Reply-To: <alpine.DEB.2.02.1304231851040.1513@kelly.ryd.net>
[-- Attachment #1: Type: text/plain, Size: 787 bytes --]
On Tue, 23 Apr 2013 21:45:11 +0200 (CEST)
Thommy Jakobsson <thommyj@gmail.com> wrote:
> From: Thommy Jakobsson <thommyj@gmail.com>
>
> Add handling of rx descriptor underflow. This fixes a fault that could
> happen on slow machines, where data is received faster than the CPU can
> handle. In such a case the device will use up all rx descriptors and
> refuse to send any more data before confirming that it is ok. This
> patch enables necessary interrupt to discover such a situation and will
> handle them by dropping everything in the ring buffer.
>
> Reviewed-by: Michael Buesch <m@bues.ch>
> Signed-off-by: Thommy Jakobsson <thommyj@gmail.com>
> Cc: stable <stable@vger.kernel.org>
Anybody interested in porting this to b43legacy (and testing)?
--
Michael
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next prev parent reply other threads:[~2013-05-02 13:06 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-23 19:45 [PATCH] B43: Handle DMA RX descriptor underrun Thommy Jakobsson
2013-04-23 20:33 ` [PATCH] b43: rename stop-index DMA op Michael Büsch
2013-04-23 20:33 ` Michael Büsch
2013-04-24 7:00 ` [PATCH] B43: Handle DMA RX descriptor underrun Rafał Miłecki
2013-04-24 7:00 ` Rafał Miłecki
2013-05-03 17:35 ` John W. Linville
2013-05-03 19:40 ` Thommy Jakobsson
2013-05-03 19:40 ` Thommy Jakobsson
2013-05-02 13:06 ` Michael Büsch [this message]
2013-05-02 13:06 ` Michael Büsch
2013-05-02 15:01 ` Larry Finger
2013-05-02 15:01 ` Larry Finger
2013-05-05 12:44 ` Rafał Miłecki
2013-05-05 12:44 ` Rafał Miłecki
2013-05-05 13:56 ` Michael Büsch
2013-05-05 13:56 ` Michael Büsch
2013-05-05 15:34 ` Rafał Miłecki
2013-05-05 15:34 ` Rafał Miłecki
2013-05-05 19:09 ` Thommy Jakobsson
2013-05-05 19:09 ` Thommy Jakobsson
2013-05-05 15:43 ` Rafał Miłecki
2013-05-05 15:43 ` Rafał Miłecki
2013-05-05 16:31 ` Rafał Miłecki
2013-05-05 16:31 ` Rafał Miłecki
2013-05-05 17:24 ` Michael Büsch
2013-05-05 17:24 ` Michael Büsch
2013-05-05 19:50 ` Rafał Miłecki
2013-05-05 19:50 ` Rafał Miłecki
2013-05-05 19:58 ` Michael Büsch
2013-05-05 19:58 ` Michael Büsch
2013-05-05 20:06 ` Thommy Jakobsson
2013-05-05 20:06 ` Thommy Jakobsson
2013-05-05 19:59 ` Thommy Jakobsson
2013-05-05 19:59 ` Thommy Jakobsson
2013-05-05 19:22 ` Larry Finger
2013-05-05 19:22 ` Larry Finger
2013-05-13 18:27 ` Thommy Jakobsson
2013-05-13 18:27 ` Thommy Jakobsson
2013-05-24 16:49 ` John W. Linville
2013-05-24 16:49 ` John W. Linville
2013-05-25 19:02 ` Thommy Jakobsson
2013-05-25 19:02 ` Thommy Jakobsson
2013-05-25 19:37 ` Hauke Mehrtens
2013-05-25 19:37 ` Hauke Mehrtens
2013-05-25 19:42 ` Michael Büsch
2013-05-25 19:42 ` Michael Büsch
2013-05-25 20:37 ` Larry Finger
2013-05-25 20:37 ` Larry Finger
2013-05-28 17:37 ` John W. Linville
2013-05-28 17:37 ` John W. Linville
2013-06-10 9:40 ` Rafał Miłecki
2013-06-10 9:40 ` Rafał Miłecki
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