From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <486A97F3.1090606@domain.hid> Date: Tue, 01 Jul 2008 22:47:47 +0200 From: Gilles Chanteperdrix MIME-Version: 1.0 References: <200807010043.33331.leo@domain.hid> <486A9516.6000703@domain.hid> <200807012244.42278.leo@domain.hid> In-Reply-To: <200807012244.42278.leo@domain.hid> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-help] IRQs and PCIs List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Leopold Palomo Avellaneda Cc: xenomai@xenomai.org Leopold Palomo Avellaneda wrote: > A Dimarts 01 Juliol 2008, Gilles Chanteperdrix va escriure: >> Leopold Palomo Avellaneda wrote: >>> Hi, >>> >>> maybe is an off toppic, but probably some like me has this issue. I have >>> a mainboard with several PCI and two PCIe. I can configure the PCIe to >>> use with rtnet and xenomai without any important problem. >>> >>> The mobo has an eth and firewire and vga incorporated, so the pci are >>> free. But now, I would like to add a pci network card. I have three: >>> - on for our environtment >>> - two for the rtnet (two robot controlers) >>> >>> and then I would like to have 4 >>> - one for another network >>> >>> The problem that I have and I don't know how to solve is that the new pci >>> network card share an irq with another device. So, in my case, I have >>> problems with this. With rtnet, I solve this using pcie devices, but now >>> I cannot. >>> >>> I have configure the xenomai kernel following the FAQ, and I have tested >>> to assign an IRQ in the BIOS. But I have not be able to make the >>> interface works. I have delays in the interface, and google says ;-) that >>> is a problems of sharing IRQs with the eth. And I believe in that ... >>> >>> So, thinking that I would like to use this eth in a normal environment >>> (not rtnet,) but in a box using xenomai, some of you have some "magical" >>> idea, kernel parameter, etc to solve this issue? >>> >>> Thanks in advance, >> Well, maybe you can configure the cards controlled by rtnet to actually >> share their irq ? Maybe this would free irqs for other cards ? > > it's no problem the rtnet card. I bought two pci-e and they have the MSI and > irq 1275. It's the normal pci. > > Today I have done it work with the irqpoll option. But I don't know if this > could make problems to the realtime. If you are not talking about a card use by rtnet, then there is no irq sharing problem. -- Gilles.