cvs commit: src/sys/net if_vlan.c

[Yar Tikhiy]

yar         2004-07-26 14:46:04 UTC

  FreeBSD src repository

  Modified files:
    sys/net              if_vlan.c 
  Log:
  Stop tinkering with the parent's VLAN_MTU capability.
  Now it is user-controlled through ifconfig(8).
  
  The former ``automagic'' way of operation created more
  trouble than good.  First, VLAN_MTU consumers other than
  vlan(4) had appeared, e.g., ng_vlan(4).  Second, there was
  no way to disable VLAN_MTU manually if it were causing
  trouble, e.g., data corruption.
  
  Dropping the ``automagic'' should be completely invisible
  to the user since
  a) all the drivers supporting VLAN_MTU
  have it enabled by default, and in the first place
  b) there is only one driver that can really toggle VLAN_MTU
  in the hardware under its control (it's fxp(4), to which
  I added VLAN_MTU controls to illustrate the principle.)
  
  Revision  Changes    Path
  1.72      +7 -27     src/sys/net/if_vlan.c