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

Pyun YongHyeon yongari at
Thu Jul 10 01:23:55 UTC 2008

yongari     2008-07-10 01:23:45 UTC

  FreeBSD src repository

  Added files:           (Branch: RELENG_7)
    sys/dev/age          if_age.c if_agereg.h if_agevar.h 
  SVN rev 180403 on 2008-07-10 01:23:45Z by yongari
  MFC r179100
    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   +3356 -0   src/sys/dev/age/if_age.c (new)   +656 -0    src/sys/dev/age/if_agereg.h (new)   +272 -0    src/sys/dev/age/if_agevar.h (new)

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