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  9. 14 May, 2008 2 commits
    • Ester Kummer's avatar
      iwlwifi: move per driverdebug_level to per device · bf403db8
      Ester Kummer authored 
      

This patch ports the debug_level to iwl_priv and changes
the format of the debug prints.

Signed-off-by: default avatarEster Kummer <ester.kummer@intel.com>
Signed-off-by: default avatarZhu Yi <yi.zhu@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      bf403db8
    • Johannes Berg's avatar
      mac80211: proper STA info locking · 07346f81
      Johannes Berg authored 
      

As discussed earlier, we can unify locking in struct sta_info
and use just a single spinlock protecting all members of the
structure that need protection. Many don't, but one of the
especially bad ones is the 'flags' member that can currently
be clobbered when RX and TX is being processed on different
CPUs at the same time.

Because having four spinlocks for different, mostly exclusive
parts of a single structure is overkill, this patch also kills
the ampdu and mesh plink spinlocks and uses just a single one
for everything. Because none of the spinlocks are nested, this
is safe.

It remains to be seen whether or not we should make the sta
flags use atomic bit operations instead, for now though this
is a safe thing and using atomic operations instead will be
very simple using the new static inline functions this patch
introduces for accessing sta->flags.

Since spin_lock_bh() is used with this lock, there shouldn't
be any contention even if aggregation is enabled at around the
same time as both requires frame transmission/reception which
is in a bh context.

Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Cc: Tomas Winkler <tomasw@gmail.com>
Cc: Ron Rindjunsky <ron.rindjunsky@intel.com>
Cc: Luis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      07346f81
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    • Johannes Berg's avatar
      cfg80211 API for channels/bitrates, mac80211 and driver conversion · 8318d78a
      Johannes Berg authored 
      

This patch creates new cfg80211 wiphy API for channel and bitrate
registration and converts mac80211 and drivers to the new API. The
old mac80211 API is completely ripped out. All drivers (except ath5k)
are updated to the new API, in many cases I expect that optimisations
can be done.

Along with the regulatory code I've also ripped out the
IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag, I believe it to be
unnecessary if the hardware simply gives us whatever channels it wants
to support and we then enable/disable them as required, which is pretty
much required for travelling.

Additionally, the patch adds proper "basic" rate handling for STA
mode interface, AP mode interface will have to have new API added
to allow userspace to set the basic rate set, currently it'll be
empty... However, the basic rate handling will need to be moved to
the BSS conf stuff.

I do expect there to be bugs in this, especially wrt. transmit
power handling where I'm basically clueless about how it should work.

Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      8318d78a
    • Ron Rindjunsky's avatar
      iwlwifi: A-MPDU Tx activation by load measures · 0c11b4de
      Ron Rindjunsky authored 
      

This patch gives a heuristic for activation of the A-MPDU Tx.
As the rate scaling is rate aware, it now also measures estimated load, and
sends A-MPDU activation after a threshold has been met.

Signed-off-by: default avatarRon Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      0c11b4de