On 5/31/19 9:13 AM, Christian Svensson wrote: > Hi Hannes, > > On Fri, May 31, 2019 at 8:06 AM Hannes Reinecke <hare@xxxxxxx> wrote: >> Hmm. I wonder: do you _know_ what you are asking? >> Have you ever worked with a mainframe? > > I can assure you I have no idea what I am doing :-). I am doing this as a > learning project where my aim is to implement a virtual card reader in > user space. > There are easier ways for this ... I'd start with virtio-ccw and implement a virtual PUNCHER there ... >> unless you're having access to a fibrechannel analyser hooked up to a mainframe. > > Funnily enough, I happen to own both. > Oh. Now _that_ is unexpected. Then I would not stand in your way. Still, an uphill struggle; IBM is notorious for not giving out details about the internals, and simulating a puncher is one of these things. (And slightly pointless, but who am I to judge ...) However, I do wonder how you came by an FC analyser ... any chance of me borrowing it occasionally? Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking hare@xxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Mary Higgins, Sri Rasiah HRB 21284 (AG Nürnberg)
