iwlwifi: mvm: ignore temperature updates in the RX statistics notification
If the firmware sends spontaneous DTS notfications with the
temperature (indicated in a TLV), we can ignore the temperature we get
in the RX statistics notifications. This prevents potentially
handling the same temperature change twice. It also ignores
notifications with temperature equal to 0 that happens from time to
time.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
index 32e8b5b..115e604 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
@@ -246,6 +246,7 @@
* the actual dwell time.
* @IWL_UCODE_TLV_API_SCD_CFG: This firmware can configure the scheduler
* through the dedicated host command.
+ * @IWL_UCODE_TLV_API_ASYNC_DTM: Async temperature notifications are supported.
*/
enum iwl_ucode_tlv_api {
IWL_UCODE_TLV_API_BT_COEX_SPLIT = BIT(3),
@@ -255,6 +256,7 @@
IWL_UCODE_TLV_API_FRAGMENTED_SCAN = BIT(8),
IWL_UCODE_TLV_API_BASIC_DWELL = BIT(13),
IWL_UCODE_TLV_API_SCD_CFG = BIT(15),
+ IWL_UCODE_TLV_API_ASYNC_DTM = BIT(17),
};
/**
diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c
index 02e0f37..7919a7b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rx.c
@@ -516,7 +516,11 @@
.mvm = mvm,
};
- iwl_mvm_tt_temp_changed(mvm,
+ /* Only handle rx statistics temperature changes if async temp
+ * notifications are not supported
+ */
+ if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_ASYNC_DTM))
+ iwl_mvm_tt_temp_changed(mvm,
le32_to_cpu(stats->general.radio_temperature));
iwl_mvm_update_rx_statistics(mvm, stats);