Hi Milton,
sorry for the delayed answer, was on vacation.
linux-kernel-ow...@vger.kernel.org wrote on 21.05.2010 11:18:01:
linux-kernel-ow...@vger.kernel.org
On Thu, 20 May 2010 at 10:21:36 +0200 (CEST) Thomas Gleixner wrote:
On Thu, 20 May 2010, Michael Ellerman wrote:
On Wed,
On Thu, 20 May 2010 at 10:21:36 +0200 (CEST) Thomas Gleixner wrote:
On Thu, 20 May 2010, Michael Ellerman wrote:
On Wed, 2010-05-19 at 16:38 +0200, Thomas Gleixner wrote:
On Wed, 19 May 2010, Darren Hart wrote:
On 05/18/2010 06:25 PM, Michael Ellerman wrote:
On Tue, 2010-05-18
On Thu May 20 at 11:28:36 EST in 2010, Michael Ellerman wrote:
On Wed, 2010-05-19 at 07:16 -0700, Darren Hart wrote:
On 05/18/2010 06:25 PM, Michael Ellerman wrote:
On Tue, 2010-05-18 at 15:22 -0700, Darren Hart wrote:
On 05/18/2010 02:52 PM, Brian King wrote:
Is IRQF_NODELAY
Hi,
Michael Ellerman mich...@ellerman.id.au wrote on 20.05.2010 03:34:08:
Subject:
Re: [PATCH RT] ehea: make receive irq handler non-threaded (IRQF_NODELAY)
On Wed, 2010-05-19 at 23:08 +0200, Thomas Gleixner wrote:
On Wed, 19 May 2010, Thomas Gleixner wrote:
I'm still not clear
On Thu, 20 May 2010, Jan-Bernd Themann wrote:
Thought more about that. The case at hand (ehea) is nasty:
The driver does _NOT_ disable the rx interrupt in the card in the rx
interrupt handler - for whatever reason.
Yeah I saw that, but I don't know why it's written that way.
On Thu, 20 May 2010, Michael Ellerman wrote:
On Wed, 2010-05-19 at 16:38 +0200, Thomas Gleixner wrote:
On Wed, 19 May 2010, Darren Hart wrote:
On 05/18/2010 06:25 PM, Michael Ellerman wrote:
On Tue, 2010-05-18 at 15:22 -0700, Darren Hart wrote:
The result of the discussion about
Hi Thomas
Re: [PATCH RT] ehea: make receive irq handler non-threaded (IRQF_NODELAY)
On Thu, 20 May 2010, Jan-Bernd Themann wrote:
Thought more about that. The case at hand (ehea) is nasty:
The driver does _NOT_ disable the rx interrupt in the card in the
rx
interrupt handler
Jan-Bernd,
On Thu, 20 May 2010, Jan-Bernd Themann wrote:
Hi Thomas
Re: [PATCH RT] ehea: make receive irq handler non-threaded (IRQF_NODELAY)
On Thu, 20 May 2010, Jan-Bernd Themann wrote:
Thought more about that. The case at hand (ehea) is nasty:
The driver does _NOT_
Thomas Gleixner wrote:
Pleaes check if multiple queues are enabled. The following module parameter
is used for that:
MODULE_PARM_DESC(use_mcs, 0:NAPI, 1:Multiple receive queues, Default = 0
);
you should also see the number of used HEA interrupts in /proc/interrupts
I leave that for Will
On 05/20/2010 01:14 AM, Thomas Gleixner wrote:
On Thu, 20 May 2010, Jan-Bernd Themann wrote:
Thought more about that. The case at hand (ehea) is nasty:
The driver does _NOT_ disable the rx interrupt in the card in the rx
interrupt handler - for whatever reason.
Yeah I saw that, but I don't
On Thu, 20 May 2010, Darren Hart wrote:
On 05/20/2010 01:14 AM, Thomas Gleixner wrote:
On Thu, 20 May 2010, Jan-Bernd Themann wrote:
Thought more about that. The case at hand (ehea) is nasty:
The driver does _NOT_ disable the rx interrupt in the card in the rx
interrupt
On Thu, 2010-05-20 at 11:05 +0200, Jan-Bernd Themann wrote:
Hi Thomas
Re: [PATCH RT] ehea: make receive irq handler non-threaded (IRQF_NODELAY)
On Thu, 20 May 2010, Jan-Bernd Themann wrote:
Thought more about that. The case at hand (ehea) is nasty:
The driver does _NOT_
On Thu, 2010-05-20 at 16:45 +0200, Thomas Gleixner wrote:
On Thu, 20 May 2010, Darren Hart wrote:
On 05/20/2010 01:14 AM, Thomas Gleixner wrote:
On Thu, 20 May 2010, Jan-Bernd Themann wrote:
Thought more about that. The case at hand (ehea) is nasty:
The driver does _NOT_
On 05/18/2010 06:25 PM, Michael Ellerman wrote:
On Tue, 2010-05-18 at 15:22 -0700, Darren Hart wrote:
On 05/18/2010 02:52 PM, Brian King wrote:
Is IRQF_NODELAY something specific to the RT kernel? I don't see it in
mainline...
Yes, it basically says don't make this handler threaded.
That
On Wed, 19 May 2010, Darren Hart wrote:
On 05/18/2010 06:25 PM, Michael Ellerman wrote:
On Tue, 2010-05-18 at 15:22 -0700, Darren Hart wrote:
On 05/18/2010 02:52 PM, Brian King wrote:
Is IRQF_NODELAY something specific to the RT kernel? I don't see it in
mainline...
Yes, it
On Wed, 19 May 2010, Thomas Gleixner wrote:
I'm still not clear on why the ultimate solution wasn't to have XICS report
edge triggered as edge triggered. Probably some complexity of the entire
power
stack that I am ignorant of.
Apart from the issue of loosing interrupts there is
On Wed, 2010-05-19 at 07:16 -0700, Darren Hart wrote:
On 05/18/2010 06:25 PM, Michael Ellerman wrote:
On Tue, 2010-05-18 at 15:22 -0700, Darren Hart wrote:
On 05/18/2010 02:52 PM, Brian King wrote:
Is IRQF_NODELAY something specific to the RT kernel? I don't see it in
mainline...
On Wed, 2010-05-19 at 16:38 +0200, Thomas Gleixner wrote:
On Wed, 19 May 2010, Darren Hart wrote:
On 05/18/2010 06:25 PM, Michael Ellerman wrote:
On Tue, 2010-05-18 at 15:22 -0700, Darren Hart wrote:
On 05/18/2010 02:52 PM, Brian King wrote:
Is IRQF_NODELAY something specific to
On Wed, 2010-05-19 at 23:08 +0200, Thomas Gleixner wrote:
On Wed, 19 May 2010, Thomas Gleixner wrote:
I'm still not clear on why the ultimate solution wasn't to have XICS
report
edge triggered as edge triggered. Probably some complexity of the entire
power
stack that I am
Subject: [PATCH RT] ehea: make receive irq handler non-threaded (IRQF_NODELAY)
The underlying hardware is edge triggered but presented by XICS as level
triggered. The edge triggered interrupts are not reissued after masking. This
is not a problem in mainline which does not mask the interrupt
Brian King wrote:
Is IRQF_NODELAY something specific to the RT kernel? I don't see it in
mainline...
Yep, this is RT only.
thanks,
Nivedita
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From: Darren Hartdvh...@us.ibm.com
Date: Tue, 18 May 2010 11:07:13 -0700
Subject: [PATCH RT] ehea: make receive irq handler non-threaded (IRQF_NODELAY)
The underlying hardware is edge triggered but presented by XICS as level
triggered. The edge triggered
On Tue, 2010-05-18 at 15:22 -0700, Darren Hart wrote:
On 05/18/2010 02:52 PM, Brian King wrote:
Is IRQF_NODELAY something specific to the RT kernel? I don't see it in
mainline...
Yes, it basically says don't make this handler threaded.
That is a good fix for EHEA, but the threaded
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