I'm writing my first pure, straight-to-hardware, ethernet driver for
darwin. I'm just wondering what serialization is provided by IOKit,
and what do I need to provide for myself. I've read the "Network
Device Driver Programming Guide", and it only mentions locking in the
context of using a gated output queue, and it suggests that the driver
protect the enable/disable methods with a mutex.
What about all the other entry points to the driver? For example, can
setPromiscuousMode() be called simultaniously from multiple threads?
Or do these calls happen in the workloop context so they are
automagically gated? How about setMaxPacketSize()?
Thank you,
Drew
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