cfg80211

Add support for customizing the MCS rate mask used

allow advertising the supported interface type combinations, e.g. as

/*
 * Each of this struct denotes a combination, e.g.
 * 1 AP + 1 STA. "Pseudo-combinations" containing
 * just a single interface type of count 1 should
 * not be listed as they are implied by supporting
 * a certain interface type.
 */
struct interface_combination {
        u16 number[NL80211_IFTYPE_NUM];
};

struct interface_combinations {
        struct interface_combination *combinations;
        int n_combinations;
};

struct wiphy {
        ...
        struct interface_combinations combinations
};

and then of course export this information via nl80211

in this advertising, allow for flags like "different channels", "must match beacon intervals" etc.

Regulatory database improvements

Implement new regulatory interpretation rules as discussed in this thread. In summary, using the notation outlined for mathematical intervals:

 0) for all 1 <= k < n : MAX_k <= MIN_{k+1}

 1) each rule in the regdomain covers the frequency range (MIN_1, MAX_1]

 2) given C = union (over all k = 1 .. n) of (MIN_k, MAX_k] it must be
   true that (CENTER - BW/2, CENTER + BW/2) is a subset of C

 3) it must be true for all 1 <= k <= n:
       if CENTER in (MIN_k, MAX_k] : BW <= BW_k   

 4) This is easier to formulate algorithmically:
   USE_FLAGS = 0
   for k = 1 .. n
       if (CENTER - BW/2, CENTER + BW/2) intersects (MIN_k, MAX_k]:
           USE_FLAGS |= FLAGS_k

allow for TPC
allow for spectral power limits (e.g. 10mW/MHz)

mac80211

AP support

injected frames need to be tied to another virtual interface to get the software sequence number and keys (only relevant for 11w) right
Radar detection (AP DFS or 802.11h)
WAPI support

Issues

Need to stop TX/RX when a radar is detected for the duration of scan for a new channel.
fix race in ap_sta_ps_end (it first clears the PS bit and then tells the driver etc.)

Improvements

improve paged skb RX for performance
reset the connection and beacon monitor timers when we are able to successfully TX data to an AP (we currently do it on RX)

power saving

move checking for broadcast / multicast frames to mac80211 before going to PS. ath9k already has some code for this, this should be moved to mac80211.
uAPSD support – AP side (Intel has old AP u-APSD patches but there's no AP support in iwlwifi now)
11v support (eventually)

Roaming

mac80211 drivers use userspace (wpa_supplicant) for roaming (in wpa_supplicant specify ap_scan=1)
need to export roaming capabilities of device (mac80211 has none, but fullmac cards might be able to autonomously select the best BSS) so that we don't need to configure wpa_supplicant and it can do the right thing automatically

Offchannel work

optimise "offchannel" to not stop beaconing/traffic/etc. when using the operating channel
implement addBA in terms off "offchannel" on the operating channel so it blocks other offchannel while waiting for a response
don't time out RX BA agreements while offchannel
do TX flushing as appropriate
Wait for DTIM beacon and multicast traffic before going offchannel

drivers

convert drivers to cfg80211

wireless.kernel.org site

fix CSS colours, for example link colours (if you want to start, look at the files in moin/linuxwireless/css/ and send diffs to <johannes AT sipsolutions DOT net>)
fix print view to include a black&white logo
the whole testing thing...
- q/a procedure for stack
- winlab
- info on test coverage
- tests itself need to be documented
- instructions how to run tests