mac80211: introduce new ieee80211_ops

Introduce channel context driver methods. The channel
on a context channel is immutable, but the channel type
and other properties can change.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index ab1b5bafb568..d9d2119f0828 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2353,6 +2353,16 @@ enum ieee80211_rate_control_changed {
  *      The callback will be called before each transmission and upon return
  *      mac80211 will transmit the frame right away.
  *      The callback is optional and can (should!) sleep.
+ *
+ * @add_chanctx: Notifies device driver about new channel context creation.
+ * @remove_chanctx: Notifies device driver about channel context destruction.
+ * @change_chanctx: Notifies device driver about channel context changes that
+ *      may happen when combining different virtual interfaces on the same
+ *      channel context with different settings
+ * @assign_vif_chanctx: Notifies device driver about channel context being bound
+ *      to vif. Possible use is for hw queue remapping.
+ * @unassign_vif_chanctx: Notifies device driver about channel context being
+ *      unbound from vif.
  */
 struct ieee80211_ops {
         void (*tx)(struct ieee80211_hw *hw,
@@ -2497,6 +2507,20 @@ struct ieee80211_ops {
 
         void    (*mgd_prepare_tx)(struct ieee80211_hw *hw,
                                   struct ieee80211_vif *vif);
+
+        int (*add_chanctx)(struct ieee80211_hw *hw,
+                           struct ieee80211_chanctx_conf *ctx);
+        void (*remove_chanctx)(struct ieee80211_hw *hw,
+                               struct ieee80211_chanctx_conf *ctx);
+        void (*change_chanctx)(struct ieee80211_hw *hw,
+                               struct ieee80211_chanctx_conf *ctx,
+                               u32 changed);
+        int (*assign_vif_chanctx)(struct ieee80211_hw *hw,
+                                  struct ieee80211_vif *vif,
+                                  struct ieee80211_chanctx_conf *ctx);
+        void (*unassign_vif_chanctx)(struct ieee80211_hw *hw,
+                                     struct ieee80211_vif *vif,
+                                     struct ieee80211_chanctx_conf *ctx);
 };
 
 /**