Return to mpsafe_net_driver.mdwn CVS log

Up to [NetBSD Developer Wiki] / wikisrc / projects / project

Annotation of wikisrc/projects/project/mpsafe_net_driver.mdwn, revision 1.1

1.1     ! maya        1: [[!template id=project
        !             2: 
        !             3: title="Making a network driver MPSAFE"
        !             4: 
        !             5: contact="""
        !             6: [tech-net](mailto:tech-net@NetBSD.org)
        !             7: """
        !             8: 
        !             9: category="kernel"
        !            10: difficulty="easy"
        !            11: duration="1 month"
        !            12: 
        !            13: description="""
        !            14: 
        !            15: Access to some hardware registers and other things can only be done by one CPU at a time.  
        !            16: An easy way to do this is to make the entire network stack runs with a single lock held, so operations only take place on one core.  
        !            17: This is inefficient, if you ever want to use more than one core, for faster performing cards.
        !            18: 
        !            19: Adapting old drivers to be able to run with the rest of the network stack not having this lock will improve NetBSD networking.  
        !            20: A large number of drivers must be adapted, and some of them can be emulated from virtual machines too, some examples:  
        !            21: 
        !            22: * [RealTek ethernet](http://netbsd.gw.com/cgi-bin/man-cgi?re++NetBSD-current) (QEMU)
        !            23: * [Atheros ethernet](http://netbsd.gw.com/cgi-bin/man-cgi?alc++NetBSD-current)
        !            24: 
        !            25: <!-- XXX list more -->
        !            26: """
        !            27: 
        !            28: ]]
        !            29: 
        !            30: [[!tag gsoc]]