1. 28 7月, 2010 1 次提交
  2. 19 6月, 2010 1 次提交
  3. 03 6月, 2010 1 次提交
  4. 08 5月, 2010 1 次提交
    • J
      mac80211: improve HT channel handling · 0aaffa9b
      Johannes Berg 提交于
      Currently, when one interface switches HT mode,
      all others will follow along. This is clearly
      undesirable, since the new one might switch to
      no-HT while another one is operating in HT.
      
      Address this issue by keeping track of the HT
      mode per interface, and allowing only changes
      that are compatible, i.e. switching into HT40+
      is not possible when another interface is in
      HT40-, in that case the second one needs to
      fall back to HT20.
      
      Also, to allow drivers to know what's going on,
      store the per-interface HT mode (channel type)
      in the virtual interface's bss_conf.
      Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      0aaffa9b
  5. 04 5月, 2010 2 次提交
  6. 28 4月, 2010 1 次提交
  7. 20 4月, 2010 1 次提交
  8. 09 4月, 2010 1 次提交
  9. 30 3月, 2010 1 次提交
    • T
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking... · 5a0e3ad6
      Tejun Heo 提交于
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
      
      percpu.h is included by sched.h and module.h and thus ends up being
      included when building most .c files.  percpu.h includes slab.h which
      in turn includes gfp.h making everything defined by the two files
      universally available and complicating inclusion dependencies.
      
      percpu.h -> slab.h dependency is about to be removed.  Prepare for
      this change by updating users of gfp and slab facilities include those
      headers directly instead of assuming availability.  As this conversion
      needs to touch large number of source files, the following script is
      used as the basis of conversion.
      
        http://userweb.kernel.org/~tj/misc/slabh-sweep.py
      
      The script does the followings.
      
      * Scan files for gfp and slab usages and update includes such that
        only the necessary includes are there.  ie. if only gfp is used,
        gfp.h, if slab is used, slab.h.
      
      * When the script inserts a new include, it looks at the include
        blocks and try to put the new include such that its order conforms
        to its surrounding.  It's put in the include block which contains
        core kernel includes, in the same order that the rest are ordered -
        alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
        doesn't seem to be any matching order.
      
      * If the script can't find a place to put a new include (mostly
        because the file doesn't have fitting include block), it prints out
        an error message indicating which .h file needs to be added to the
        file.
      
      The conversion was done in the following steps.
      
      1. The initial automatic conversion of all .c files updated slightly
         over 4000 files, deleting around 700 includes and adding ~480 gfp.h
         and ~3000 slab.h inclusions.  The script emitted errors for ~400
         files.
      
      2. Each error was manually checked.  Some didn't need the inclusion,
         some needed manual addition while adding it to implementation .h or
         embedding .c file was more appropriate for others.  This step added
         inclusions to around 150 files.
      
      3. The script was run again and the output was compared to the edits
         from #2 to make sure no file was left behind.
      
      4. Several build tests were done and a couple of problems were fixed.
         e.g. lib/decompress_*.c used malloc/free() wrappers around slab
         APIs requiring slab.h to be added manually.
      
      5. The script was run on all .h files but without automatically
         editing them as sprinkling gfp.h and slab.h inclusions around .h
         files could easily lead to inclusion dependency hell.  Most gfp.h
         inclusion directives were ignored as stuff from gfp.h was usually
         wildly available and often used in preprocessor macros.  Each
         slab.h inclusion directive was examined and added manually as
         necessary.
      
      6. percpu.h was updated not to include slab.h.
      
      7. Build test were done on the following configurations and failures
         were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
         distributed build env didn't work with gcov compiles) and a few
         more options had to be turned off depending on archs to make things
         build (like ipr on powerpc/64 which failed due to missing writeq).
      
         * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
         * powerpc and powerpc64 SMP allmodconfig
         * sparc and sparc64 SMP allmodconfig
         * ia64 SMP allmodconfig
         * s390 SMP allmodconfig
         * alpha SMP allmodconfig
         * um on x86_64 SMP allmodconfig
      
      8. percpu.h modifications were reverted so that it could be applied as
         a separate patch and serve as bisection point.
      
      Given the fact that I had only a couple of failures from tests on step
      6, I'm fairly confident about the coverage of this conversion patch.
      If there is a breakage, it's likely to be something in one of the arch
      headers which should be easily discoverable easily on most builds of
      the specific arch.
      Signed-off-by: NTejun Heo <tj@kernel.org>
      Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
      5a0e3ad6
  10. 20 2月, 2010 1 次提交
  11. 09 2月, 2010 1 次提交
  12. 23 1月, 2010 1 次提交
    • J
      cfg80211: export multiple MAC addresses in sysfs · ef15aac6
      Johannes Berg 提交于
      If a device has multiple MAC addresses, userspace will
      need to know about that. Similarly, if it allows the
      MAC addresses to vary by a bitmask.
      
      If a driver exports multiple addresses, it is assumed
      that it will be able to deal with that many different
      addresses, which need not necessarily match the ones
      programmed into the device; if a mask is set then the
      device should deal addresses within that mask based
      on an arbitrary "base address".
      
      To test it all and show how it is used, add support
      to hwsim even though it can't actually deal with
      addresses different from the default.
      Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      ef15aac6
  13. 29 12月, 2009 2 次提交
  14. 23 12月, 2009 3 次提交
  15. 20 11月, 2009 1 次提交
  16. 03 11月, 2009 2 次提交
  17. 31 10月, 2009 1 次提交
  18. 30 9月, 2009 1 次提交
  19. 01 9月, 2009 1 次提交
  20. 20 8月, 2009 1 次提交
    • J
      mac80211: allow configure_filter callback to sleep · 3ac64bee
      Johannes Berg 提交于
      Over time, a whole bunch of drivers have come up
      with their own scheme to delay the configure_filter
      operation to a workqueue. To be able to simplify
      things, allow configure_filter to sleep, and add
      a new prepare_multicast callback that drivers that
      need the multicast address list implement. This new
      callback must be atomic, but most drivers either
      don't care or just calculate a hash which can be
      done atomically and then uploaded to the hardware
      non-atomically.
      
      A cursory look suggests that at76c50x-usb, ar9170,
      mwl8k (which is actually very broken now), rt2x00,
      wl1251, wl1271 and zd1211 should make use of this
      new capability.
      Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      3ac64bee
  21. 25 7月, 2009 2 次提交
  22. 22 7月, 2009 2 次提交
  23. 11 7月, 2009 5 次提交
  24. 09 7月, 2009 1 次提交
  25. 06 7月, 2009 1 次提交
  26. 04 6月, 2009 1 次提交
  27. 21 5月, 2009 1 次提交
    • D
      mac80211_hwsim: Group radios · 73606d00
      Daniel Wagner 提交于
      Currently all radios receive all traffic on the simulated air
      if they are tuned to the same channel. This patch introduces
      the concept of grouping, which allows to assign a radio to
      certain group. Only radios in the same group can 'see' each other.
      
      Each bit in /debug/ieee80211/phy*/hwsim/group
      represents one group. By default all radios belong to the same group "1",
      e.g. bit 1 is set. Additionally a radio can belong to several groups.
      Signed-off-by: NDaniel Wagner <wagi@monom.org>
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      73606d00
  28. 12 5月, 2009 1 次提交
  29. 07 5月, 2009 1 次提交
    • J
      mac80211: tell driver when idle · 5cff20e6
      Johannes Berg 提交于
      When we aren't doing anything in mac80211, we can turn off
      much of the hardware, depending on the driver/hw. Not doing
      anything, aka being idle, means:
      
       * no monitor interfaces
       * no AP/mesh/wds interfaces
       * any station interfaces are in DISABLED state
       * any IBSS interfaces aren't trying to be in a network
       * we aren't trying to scan
      
      By creating a new function that verifies these conditions and calling
      it at strategic points where the states of those conditions change,
      we can easily make mac80211 tell the driver when we are idle to save
      power.
      
      Additionally, this fixes a small quirk where a recalculated powersave
      state is passed to the driver even if the hardware is about to stopped
      completely.
      
      This patch intentionally doesn't touch radio_enabled because that is
      currently implemented to be a soft rfkill which is inappropriate here
      when we need to be able to wake up with low latency.
      
      One thing I'm not entirely sure about is this:
      
        phy0: device no longer idle - in use
        wlan0: direct probe to AP 00:11:24:91:07:4d try 1
        wlan0 direct probe responded
        wlan0: authenticate with AP 00:11:24:91:07:4d
        wlan0: authenticated
      > phy0: device now idle
      > phy0: device no longer idle - in use
        wlan0: associate with AP 00:11:24:91:07:4d
        wlan0: RX AssocResp from 00:11:24:91:07:4d (capab=0x401 status=0 aid=1)
        wlan0: associated
      
      Is it appropriate to go into idle state for a short time when we have
      just authenticated, but not associated yet? This happens only with the
      userspace SME, because we cannot really know how long it will wait
      before asking us to associate. Would going idle after a short timeout
      be more appropriate? We may need to revisit this, depending on what
      happens.
      Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      5cff20e6