Merge tag 'v3.16-rc1' into i2c/for-next

[karo-tx-linux.git] / include / net / mac80211.h

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 2c78997bc48d33b9d63d9611f5003bcf2a256083..421b6ecb4b2cdee892379212f9d252f3f3ecffbc 100644 (file)
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -188,6 +188,43 @@ struct ieee80211_chanctx_conf {
        u8 drv_priv[0] __aligned(sizeof(void *));
 };
 
+/**
+ * enum ieee80211_chanctx_switch_mode - channel context switch mode
+ * @CHANCTX_SWMODE_REASSIGN_VIF: Both old and new contexts already
+ *     exist (and will continue to exist), but the virtual interface
+ *     needs to be switched from one to the other.
+ * @CHANCTX_SWMODE_SWAP_CONTEXTS: The old context exists but will stop
+ *      to exist with this call, the new context doesn't exist but
+ *      will be active after this call, the virtual interface switches
+ *      from the old to the new (note that the driver may of course
+ *      implement this as an on-the-fly chandef switch of the existing
+ *      hardware context, but the mac80211 pointer for the old context
+ *      will cease to exist and only the new one will later be used
+ *      for changes/removal.)
+ */
+enum ieee80211_chanctx_switch_mode {
+       CHANCTX_SWMODE_REASSIGN_VIF,
+       CHANCTX_SWMODE_SWAP_CONTEXTS,
+};
+
+/**
+ * struct ieee80211_vif_chanctx_switch - vif chanctx switch information
+ *
+ * This is structure is used to pass information about a vif that
+ * needs to switch from one chanctx to another.  The
+ * &ieee80211_chanctx_switch_mode defines how the switch should be
+ * done.
+ *
+ * @vif: the vif that should be switched from old_ctx to new_ctx
+ * @old_ctx: the old context to which the vif was assigned
+ * @new_ctx: the new context to which the vif must be assigned
+ */
+struct ieee80211_vif_chanctx_switch {
+       struct ieee80211_vif *vif;
+       struct ieee80211_chanctx_conf *old_ctx;
+       struct ieee80211_chanctx_conf *new_ctx;
+};
+
 /**
  * enum ieee80211_bss_change - BSS change notification flags
  *
@@ -2736,6 +2773,11 @@ enum ieee80211_roc_type {
  *     to vif. Possible use is for hw queue remapping.
  * @unassign_vif_chanctx: Notifies device driver about channel context being
  *     unbound from vif.
+ * @switch_vif_chanctx: switch a number of vifs from one chanctx to
+ *     another, as specified in the list of
+ *     @ieee80211_vif_chanctx_switch passed to the driver, according
+ *     to the mode defined in &ieee80211_chanctx_switch_mode.
+ *
  * @start_ap: Start operation on the AP interface, this is called after all the
  *     information in bss_conf is set and beacon can be retrieved. A channel
  *     context is bound before this is called. Note that if the driver uses
@@ -2952,6 +2994,10 @@ struct ieee80211_ops {
        void (*unassign_vif_chanctx)(struct ieee80211_hw *hw,
                                     struct ieee80211_vif *vif,
                                     struct ieee80211_chanctx_conf *ctx);
+       int (*switch_vif_chanctx)(struct ieee80211_hw *hw,
+                                 struct ieee80211_vif_chanctx_switch *vifs,
+                                 int n_vifs,
+                                 enum ieee80211_chanctx_switch_mode mode);
 
        void (*restart_complete)(struct ieee80211_hw *hw);