From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4D91E30A.2070702@domain.hid> Date: Tue, 29 Mar 2011 15:47:54 +0200 From: Gilles Chanteperdrix MIME-Version: 1.0 References: , <4D80BA8B.7050803@domain.hid>, <4D81C6AD.8050803@domain.hid>, , , <4D88925C.3040609@domain.hid>, , <4D88D39D.907@domain.hid>, <4D88D66F.6020605@domain.hid>, , In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-core] MSI support in Xenomai List-Id: Xenomai life and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: krishna m Cc: jan.kiszka@domain.hid, xenomai@xenomai.org 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.