Re: [patch 2/5] Staging: vme: add VME userspace driver
From: Martyn Welch
Date: Wed Aug 12 2009 - 08:19:59 EST
Emilio G. Cota wrote:
Martyn Welch wrote:
However, I also need to consider other cases, such as communications
between multiple SBCs and potentially a few slave devices. I have a need
for this *now*, not in the future. To me, slave support and to a lesser
degree location monitor support is important now, hence why it's
supported in my driver and core. Hence why I am asking, how do you
propose to support these features?
Point taken.
Could you tell me a bit more about your needs on this respect?
So, you have multiple SBCs (some of them as masters, some others
as slaves) running Linux and want to communicate between them?
Yes - though potentially each card will be both a master and a slave.
Have you got working code for all that?
In so far as the VME core and tsi-148 driver supports the required functionality, I believe so. We have systems supporting this, though currently with different OSes. We also have a bit of legacy Linux VME code, using the old style of interface. At the moment my priority is less on individual applications and more focused towards ensuring we have a robust API which will support all the features we are likely to require for the chipsets that we have in our products.
We have briefly talked about a "Ethernet over VME" like the "Ethernet over RapidIO" driver, however, this currently isn't top priority.
Martyn
E.
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Martyn Welch MEng MPhil MIET (Principal Software Engineer) T:+44(0)127322748
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