cvs commit: src/sys/dev/age if_age.c if_agereg.h if_agevar.h

[Pyun YongHyeon]

yongari     2008-05-19 01:39:59 UTC

  FreeBSD src repository

  Added files:
    sys/dev/age          if_age.c if_agereg.h if_agevar.h 
  Log:
  Add age(4), a driver for Attansic/Atheros L1 gigabit ethernet
  controller. L1 has several threshold/timer registers and they
  seem to require careful tuned parameters to get best
  performance. Datasheet for L1 is not available to open source
  driver writers so age(4) focus on stability and correctness of
  basic Tx/Rx operation. ATM the performance of age(4) is far from
  optimal which in turn means there are mis-programmed registers or
  incorrectly configured registers.
  Currently age(4) supports all known hardware assistance including
    - MSI support.
    - TCP Segmentation Offload.
    - Hardware VLAN tag insertion/stripping.
    - TCP/UDP checksum offload.
    - Interrupt moderation.
    - Hardware statistics counter support.
    - Jumbo frame support.
    - WOL support.
  
  L1 gigabit ethernet controller is mainly found on ASUS
  motherboards. Note, it seems that there are other variants of
  hardware as known as L2(Fast ethernet) and newer gigabit ethernet
  (AR81xx) from Atheros. These are not supported by age(4) and
  requires a seperate driver. Big thanks to all people who reported
  feedback or tested patches.
  
  Tested by:      kevlo, bsam, Francois Ranchin < fyr AT fyrou DOT net >
                  Thomas Nystroem < thn AT saeab DOT se >
                  Roman Pogosyan < asternetadmin AT gmail DOT com >
                  Derek Tattersal < dlt AT mebtel DOT net >
                  Oliver Seitz < karlkiste AT yahoo DOT com >
  
  Revision  Changes    Path
  1.1       +3356 -0   src/sys/dev/age/if_age.c (new)
  1.1       +656 -0    src/sys/dev/age/if_agereg.h (new)
  1.1       +272 -0    src/sys/dev/age/if_agevar.h (new)