diff options
| author | Michal Kazior <michal.kazior@tieto.com> | 2012-06-26 14:37:16 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-10-16 20:22:41 +0200 |
| commit | d01a1e658606a0a69100f49c2ef09aacaf74d3e7 (patch) | |
| tree | 30de068699ed95997ad44f4d0f703a6deb0ad95b /net/mac80211/ieee80211_i.h | |
| parent | ddffeb8c4d0331609ef2581d84de4d763607bd37 (diff) | |
| download | linux-d01a1e658606a0a69100f49c2ef09aacaf74d3e7.tar.bz2 | |
mac80211: introduce channel context skeleton code
Channel context are the foundation for multi-channel
operation. They are are immutable and are re-created
(or re-used if other interfaces are bound to a certain
channel and a compatible channel type) on channel
switching.
This is an initial implementation and more features
will come in separate patches.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
[some changes including RCU protection]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/ieee80211_i.h')
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 8c804550465b..9a058e58d53e 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -658,6 +658,30 @@ enum ieee80211_sdata_state_bits { SDATA_STATE_OFFCHANNEL, }; +/** + * enum ieee80211_chanctx_mode - channel context configuration mode + * + * @IEEE80211_CHANCTX_SHARED: channel context may be used by + * multiple interfaces + * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used + * only by a single interface. This can be used for example for + * non-fixed channel IBSS. + */ +enum ieee80211_chanctx_mode { + IEEE80211_CHANCTX_SHARED, + IEEE80211_CHANCTX_EXCLUSIVE +}; + +struct ieee80211_chanctx { + struct list_head list; + struct rcu_head rcu_head; + + enum ieee80211_chanctx_mode mode; + int refcount; + + struct ieee80211_chanctx_conf conf; +}; + struct ieee80211_sub_if_data { struct list_head list; @@ -987,6 +1011,10 @@ struct ieee80211_local { struct ieee80211_channel *tmp_channel; enum nl80211_channel_type tmp_channel_type; + /* channel contexts */ + struct list_head chanctx_list; + struct mutex chanctx_mtx; + /* SNMP counters */ /* dot11CountersTable */ u32 dot11TransmittedFragmentCount; @@ -1510,6 +1538,13 @@ bool ieee80211_set_channel_type(struct ieee80211_local *local, enum nl80211_channel_type ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper); +int __must_check +ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata, + struct ieee80211_channel *channel, + enum nl80211_channel_type channel_type, + enum ieee80211_chanctx_mode mode); +void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata); + #ifdef CONFIG_MAC80211_NOINLINE #define debug_noinline noinline #else |