iwlwifi: mvm: add MVM_FW_MCAST_FILTER_PASS_ALL option

Add MVM_FW_MCAST_FILTER_PASS_ALL option to iwl-dbg-cfg.ini configuration file
to enable/disable FW multicast filtering.

Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

2 files changed, 7 insertions, 5 deletions

diff --git a/drivers/net/wireless/iwlwifi/mvm/constants.h b/drivers/net/wireless/iwlwifi/mvm/constants.h
index dd00e8f7f765..cb48656a8eaf 100644
--- a/drivers/net/wireless/iwlwifi/mvm/constants.h
+++ b/drivers/net/wireless/iwlwifi/mvm/constants.h
@@ -86,5 +86,6 @@
 #define IWL_MVM_BT_COEX_SYNC2SCO                1
 #define IWL_MVM_BT_COEX_CORUNNING               1
 #define IWL_MVM_BT_COEX_MPLUT                   1
+#define IWL_MVM_FW_MCAST_FILTER_PASS_ALL        0
 
 #endif /* __MVM_CONSTANTS_H */
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index bcfb03ce46be..089d7b37cf90 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1200,14 +1200,15 @@ static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
         struct iwl_mcast_filter_cmd *cmd;
         struct netdev_hw_addr *addr;
-        int addr_count = netdev_hw_addr_list_count(mc_list);
-        bool pass_all = false;
+        int addr_count;
+        bool pass_all;
         int len;
 
-        if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) {
-                pass_all = true;
+        addr_count = netdev_hw_addr_list_count(mc_list);
+        pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
+                   IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
+        if (pass_all)
                 addr_count = 0;
-        }
 
         len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
         cmd = kzalloc(len, GFP_ATOMIC);