1. 25 8月, 2011 1 次提交
    • C
      p54: improve site survey · 0d78156e
      Christian Lamparter 提交于
      The firmware keeps track of channel usage. This data can
      be used by the automatic channel selection to find the best
      channel.
      
      Survey data from wlan4
      	frequency:				5200 MHz [in use]
      	noise:					-91 dBm
      	channel active time:			811909 ms
      	channel busy time:			63395 ms
      	channel transmit time:			59636 ms
      Survey data from wlan4
      	frequency:				5210 MHz
      	noise:					-91 dBm
      	channel active time:			121 ms
      	channel busy time:			119 ms
      	channel transmit time:			0 ms
      Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      0d78156e
  2. 27 4月, 2011 1 次提交
    • C
      p54: implement multicast filter · be8d98ea
      Christian Lamparter 提交于
      "For best CPU usage and power consumption, having as few
      frames as possible percolate through the stack is
      desirable. Hence, the hardware should filter as much
      as possible."
      
      Note: Not all firmwares include the multicast filter
      feature and the stack does not filter them either.
      The ARP filter on the other hand was dropped from the
      patch since it does not work correctly:
      
      Quote from: Max Filippov <jcmvbkbc@gmail.com>
      <http://www.spinics.net/lists/linux-wireless/msg67466.html>
      "In the ARP case, when there's no other traffic on p54spi,
      all ARP requests are dropped. But if there's some egress
      traffic from p54spi, filter seems to work correctly:
      only ARP requests that match filter pass through.
      
      In the multicast case filter seems to work correctly, but
      it treats broadcast as subject to that filtering too. By
      default only 01:00:5e:00:00:01 gets into priv->mc_maclist,
      so we miss all broadcasts.
      
      These two filters seem to interfere:
      - if we set ARP filter and multicast filter without bc
      	=>  we miss all ARPs if there's no egress traffic;
      - if we set ARP filter and multicast filter with bc or
      	don't set mc filter at all => we get all ARPs.
      
      This effect does not depend on filter setup order."
      Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
      Tested-by: NMax Filippov <jcmvbkbc@gmail.com>
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      be8d98ea
  3. 26 2月, 2011 1 次提交
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