wifi: iwlwifi: mvm: Add basic link selection logic

Add simple logic that would allow using EMLSR in case
there are multiple valid links:

- In case the connection establishment has just been
  completed try to find a valid link pair for EMLSR
  functionality where one of the links in the pair is
  the current active link.
- In case the valid links changed after connection
  was already established, try to find a valid link pair
  for EMLSR functionality, in case the EMSLR is not active
  yet.

If a valid link pair is found call mac80211 to asynchronously
set the new link pair, otherwise continue using the current active
links.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20231004123422.0c7b89ab29c2.I6600bd16551d75e2bf520d8d0add525568a9f85f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 56965d6e6499..79ecfbb89c45 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -3803,6 +3803,13 @@ iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm,
 
 		callbacks->mac_ctxt_changed(mvm, vif, false);
 		iwl_mvm_mei_host_associated(mvm, vif, mvm_sta);
+
+		/* when client is authorized (AP station marked as such),
+		 * try to enable more links
+		 */
+		if (vif->type == NL80211_IFTYPE_STATION &&
+		    !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
+			iwl_mvm_mld_select_links(mvm, vif, false);
 	}
 
 	mvm_sta->authorized = true;