K 10
svn:author
V 7
yongari
K 8
svn:date
V 27
2012-01-04T23:29:57.152153Z
K 7
svn:log
V 2330
MFC r227850-227851,227854,227914,227916:
r227850:
  Writing access to RL_CFG5 register also requires EEPROM write
  access.
  While I'm here, enable WOL through magic packet but disable waking
  up system via unicast, multicast and broadcast frames.  Otherwise,
  multicast or unicast frame(e.g. ICMP echo request) can wake up
  system which is not probably wanted behavior on most environments.
  This was not known as problem because RL_CFG5 register access had
  not effect until this change.
  The capability to wake up system with unicast/multicast frames
  are still set in driver, default off, so users who need that
  feature can still activate it with ifconfig(8).

r227851:
  Perform media change after setting IFF_DRV_RUNNING flag. Without it,
  driver would ignore the first link state update if controller
  already established a link such that it would have to take
  additional link state handling in re_tick().

r227854:
  Disable accepting frames in re_stop() to put RX MAC into idle state.
  Because there is no reliable way to know whether RX MAC is in
  stopped state, rejecting all frames would be the only way to
  minimize possible races.
  Otherwise it's possible to receive frames while stop command
  execution is in progress and controller can DMA the frame to freed
  RX buffer during that period.
  This was observed on recent PCIe controllers(i.e. RTL8111F).

  While this change may not be required on old controllers it
  wouldn't make negative effects on old controllers.  One side effect
  of this change is disabling receive so driver reprograms RL_RXCFG
  to receive WOL frames when it is put into suspend or shutdown.

  This should address occasional 'memory modified free' errors seen
  on recent RealTek controllers.

r227914:
  Make sure to stop TX MAC before freeing queued TX frames.
  For RTL8111DP, check if the TX MAC is active by reading RL_GTXSTART
  register.  For RTL8402/8168E-VL/8168F/8411, wait until TX queue is
  empty.

r227916:
  To save more power, switch to 10/100Mbps link when controller is
  put into suspend/shutdown.  Old PCI controllers performed that
  operation in firmware but for RTL8111C or newer controllers, it's
  responsibility of driver.  It's not clear whether the firmware of
  RTL8111B still downgrades its speed to 10/100Mbps so leave it as it
  was.

END