cvs commit: src/sys/netproto/802_11 ieee80211_ratectl.h src/sys/netproto/802_11/wlan_ratectl/amrr ieee80211_ratectl_amrr.c ieee80211_ratectl_amrr.h src/sys/dev/netif/acx acx111.c

[Sepherosa Ziehau <sephe@xxxxxxxxxxxxxxxxxxxxxxx>]

sephe       2006/10/21 01:37:04 PDT

DragonFly src repository

  Modified files:
    sys/netproto/802_11  ieee80211_ratectl.h 
    sys/netproto/802_11/wlan_ratectl/amrr ieee80211_ratectl_amrr.c 
                                          ieee80211_ratectl_amrr.h 
    sys/dev/netif/acx    acx111.c 
  Log:
  Change the AMRR TX rate control algorithm:
  - Bookkeeping number of TX (counter1), and number of "fail to TX at
    desired rate" (counter2), instead of bookkeeping number of TX at
    each rate (old_counter[1-4]).
  - Calculate "failure" and "success" conditions using 'counter1' and
    'counter2', instead of only using 'old_counter1' and 'old_counter2'.
    The mistake of the old way is that 'old_counter3' and 'old_counter4'
    should also be taken as "fail to TX at desired rate".
  - Nuke no longer needed macro after above changes.
  
  This change is tested with acx(4).  The testing result shows much
  better TX performance under bad enviroment (e.g. lots of concrete
  obstacles between STA and AP, long distance etc.).
  
  Revision  Changes    Path
  1.2       +0 -1      src/sys/netproto/802_11/ieee80211_ratectl.h
  1.4       +22 -28    src/sys/netproto/802_11/wlan_ratectl/amrr/ieee80211_ratectl_amrr.c
  1.2       +2 -2      src/sys/netproto/802_11/wlan_ratectl/amrr/ieee80211_ratectl_amrr.h
  1.5       +2 -2      src/sys/dev/netif/acx/acx111.c


http://www.dragonflybsd.org/cvsweb/src/sys/netproto/802_11/ieee80211_ratectl.h.diff?r1=1.1&r2=1.2&f=u
http://www.dragonflybsd.org/cvsweb/src/sys/netproto/802_11/wlan_ratectl/amrr/ieee80211_ratectl_amrr.c.diff?r1=1.3&r2=1.4&f=u
http://www.dragonflybsd.org/cvsweb/src/sys/netproto/802_11/wlan_ratectl/amrr/ieee80211_ratectl_amrr.h.diff?r1=1.1&r2=1.2&f=u
http://www.dragonflybsd.org/cvsweb/src/sys/dev/netif/acx/acx111.c.diff?r1=1.4&r2=1.5&f=u