On Thu, 2011-03-03 at 08:21 +0100, Richard Cochran wrote: > 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 The wiki warning is out of date.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.)
The situation is not that clear. Enabling CONFIG_PCI_MSI on some 83xx board did cause a lock up at boot for me, so this may point the finger at the pipeline core for ppc, and not to Xenomai which was barely active at that stage. > > Thanks, > > Richard > > _______________________________________________ > Xenomai-help mailing list > Xenomai-help@gna.org > https://mail.gna.org/listinfo/xenomai-help -- Philippe. _______________________________________________ Xenomai-help mailing list Xenomai-help@gna.org https://mail.gna.org/listinfo/xenomai-help
