iwlwifi: mvm: BT Coex - add debugfs hook to set BT Tx priority

In order to debug the firmware, we need to be able to set
the BT priority of WiFi packets. This priority is set based
on the type of the packet (control frames, EAPOL etc...).
For debugging purposes, allow to override this priority by
a debugfs controlled value.
Enable this feature that needs this priority to be able to
test it.

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

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/mvm/coex.c b/drivers/net/wireless/iwlwifi/mvm/coex.c
index 018d75c805ad..c9b320a06070 100644
--- a/drivers/net/wireless/iwlwifi/mvm/coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/coex.c
@@ -616,6 +616,11 @@ int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
                 bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING);
         }
 
+        if (IWL_MVM_BT_COEX_MPLUT) {
+                bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT);
+                bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_MULTI_PRIO_LUT);
+        }
+
         if (mvm->cfg->bt_shared_single_ant)
                 memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
                        sizeof(iwl_single_shared_ant));
@@ -1215,6 +1220,9 @@ u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
         if (info->band != IEEE80211_BAND_2GHZ)
                 return 0;
 
+        if (unlikely(mvm->bt_tx_prio))
+                return mvm->bt_tx_prio - 1;
+
         /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
         if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
              is_multicast_ether_addr(hdr->addr1) ||