From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: krishna m <krishnamurthyjs@domain.hid>
Cc: jan.kiszka@domain.hid, xenomai@xenomai.org
Subject: Re: [Xenomai-core] MSI support in Xenomai
Date: Tue, 29 Mar 2011 15:47:54 +0200 [thread overview]
Message-ID: <4D91E30A.2070702@domain.hid> (raw)
In-Reply-To: <COL122-W63A38C16F12405076DCC54BDBD0@domain.hid>
krishna m wrote:
> Just wanted to add 3 more questions:
> 1. Which versions of Linux, Adeos patch and xenomai are tested for stable MSI functionality ? Please let me know.
> 2. I am using the Xenomai Version linux-2.6.37, xenomai-2.5.6 and adeos-ipipe-2.6.37-x86-2.9-00. Is this combination fine ?
> 3. I looked at the /proc/interrupts and with out xenomai loaded [i.e. default linux kernel] I see my card beaing assigned MSI-EDGE interrupt and with xenomai kernel i don't see the entry in the /proc/interrupts but in /proc/xenomai/irq i see this entry
> IRQ CPU0
> 16: 0 test_drv
> 521: 0 [IPI]
> 524: 869467 [timer]
> 525: 0 [critical sync]
> 546: 0 [virtual]
>
> Hi Jan and Chanteperdrix,
> Any thoughts or inputs on my updates of MSI not working ?
Ok. Since you are asking me directly I am going to answer:
my point of view is, as I already told you, that MSI are not supported,
so still from my point of view the answer to question 1 is: "none"
Question 2 is yes, it is fine, but since MSI is not supported, it is not
supposed to work.
Answer to question 3 is that /proc/interrupts shows the interrupts
registered with request_irq whereas /proc/xenomai/irq shows the
interrupts which have been registered by xnintr_init, which
rtdm_request_irq uses. So, this is not the same code, the two files do
not have the same layout.
The reason why I did not answer is that Jan probably has a different
point of view for question 1, so, I let him answer you. But as far as I
know, Jan asked you some questions, in answer to your last post, to
which you did not answer.
--
Gilles.
prev parent reply other threads:[~2011-03-29 13:47 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-16 13:20 [Xenomai-core] MSI support in Xenomai krishna m
2011-03-16 13:26 ` Gilles Chanteperdrix
2011-03-17 8:30 ` Jan Kiszka
2011-03-21 12:48 ` krishna m
2011-03-22 12:13 ` Jan Kiszka
2011-03-22 15:55 ` krishna m
2011-03-22 16:51 ` Jan Kiszka
2011-03-22 17:03 ` Gilles Chanteperdrix
2011-03-22 18:20 ` krishna m
2011-03-25 12:21 ` krishna m
2011-03-29 13:07 ` krishna m
2011-03-29 13:47 ` Gilles Chanteperdrix [this message]
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