iwlwifi: mvm: Introduce an API to set STA_FLG_DISABLE_TX flag
Introduce new station flag STA_FLG_DISABLE_TX, which is modified with ADD_STA
command. This flag, when set, disables tx to the STA.
Provide an API (iwl_mvm_sta_modify_disable_tx) to modify this flag, which
should be used in channel switch and immediate quiet flows.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h
index 39cebee..47bd040 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h
@@ -67,7 +67,7 @@
* enum iwl_sta_flags - flags for the ADD_STA host command
* @STA_FLG_REDUCED_TX_PWR_CTRL:
* @STA_FLG_REDUCED_TX_PWR_DATA:
- * @STA_FLG_FLG_ANT_MSK: Antenna selection
+ * @STA_FLG_DISABLE_TX: set if TX should be disabled
* @STA_FLG_PS: set if STA is in Power Save
* @STA_FLG_INVALID: set if STA is invalid
* @STA_FLG_DLP_EN: Direct Link Protocol is enabled
@@ -91,10 +91,7 @@
STA_FLG_REDUCED_TX_PWR_CTRL = BIT(3),
STA_FLG_REDUCED_TX_PWR_DATA = BIT(6),
- STA_FLG_FLG_ANT_A = (1 << 4),
- STA_FLG_FLG_ANT_B = (2 << 4),
- STA_FLG_FLG_ANT_MSK = (STA_FLG_FLG_ANT_A |
- STA_FLG_FLG_ANT_B),
+ STA_FLG_DISABLE_TX = BIT(4),
STA_FLG_PS = BIT(8),
STA_FLG_DRAIN_FLOW = BIT(12),
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index 1fb01ea..d3a6cf7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -1448,3 +1448,23 @@
return 0;
}
+
+void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm,
+ struct iwl_mvm_sta *mvmsta, bool disable)
+{
+ struct iwl_mvm_add_sta_cmd cmd = {
+ .add_modify = STA_MODE_MODIFY,
+ .sta_id = mvmsta->sta_id,
+ .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0,
+ .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX),
+ .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color),
+ };
+ int ret;
+
+ if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_DISABLE_STA_TX))
+ return;
+
+ ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, sizeof(cmd), &cmd);
+ if (ret)
+ IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret);
+}
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.h b/drivers/net/wireless/iwlwifi/mvm/sta.h
index d98e8a2..10c1a53 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.h
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.h
@@ -404,5 +404,7 @@
bool agg);
int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
bool drain);
+void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm,
+ struct iwl_mvm_sta *mvmsta, bool disable);
#endif /* __sta_h__ */