From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 3 Mar 2011 08:21:47 +0100 From: Richard Cochran Message-ID: <20110303072147.GA4353@domain.hid> References: <20110302151603.GA14557@domain.hid> <4D6E61B6.906@domain.hid> <4D6E8A06.9060508@domain.hid> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4D6E8A06.9060508@domain.hid> Subject: Re: [Xenomai-help] Stuck MSI in normal Linux driver List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jan Kiszka Cc: xenomai@xenomai.org On Wed, Mar 02, 2011 at 07:18:46PM +0100, Jan Kiszka wrote: > On 2011-03-02 16:26, Gilles Chanteperdrix wrote: > > Richard Cochran wrote: > >> The wiki pages > >> > >> http://www.xenomai.org/index.php/FAQs > >> http://www.xenomai.org/index.php/Configuring_x86_kernels > >> > >> say not to enable MSI on x86, with a link to a very old (2008) > >> discussion. ... > The current situation looks like this: > - MSI[-X] usage for plain Linux drivers is fine, we are using it on > machines where you can hardly avoid MSI today > - MSI[-X] usage for RTDM (ie. RT) drivers is basically fine as long as > you avoid enabling/disabling from RT context (also used for quite > a while here, no known issues under this restriction) Okay, so I understand from this: 1. The wiki warning is out of date. 2. My own PCIe MSI driver/card *should* work. (It is not a current known limitation of adeos/xenomai.) Thanks, Richard