[Click] polling patch for e1000-7.3.20

[Roman Chertov]

Why did you change the default ring parameters from 256 to 64?

Roman

Massimiliano Poletto wrote:
> Matt Gordon at Mazu has succeeded where some of us had so far failed,
> and has produced a stable polling patch for the latest (7.3.20)
> version of the e1000 driver available on sourceforge.
> 
> It has been tested on various platforms, including the IBM x345/x346
> and the Intel SR1500/SR2500, with various e1000 models, including the
> 82546GB and 82571EB, on both PCI-X and PCI-E buses.
> 
> Performance is good, comparable to or better than the old driver,
> depending on the hardware configuration.  click-installs/uninstalls
> under high load, which had been the major remaining cause of crashes
> with my version of the driver, now work reliably.
> 
> Kudos to Matt for a job well done.  Many thanks also to Roman Chertov
> for help and discussion when I was trying to get the driver working.
> 
> The patch is attached.  I hope it's useful.  If you see problems or
> crashes, please let us know.
> 
> Regards,
> max