3 files changed, 61 insertions, 7 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index 64ff2395800c..f7ff7f2e3928 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -94,11 +94,10 @@ struct iwl_mvm_phy_ctxt {
 
 	enum nl80211_chan_width width;
 
-	/*
-	 * TODO: This should probably be removed. Currently here only for rate
-	 * scaling algorithm
-	 */
 	struct ieee80211_channel *channel;
+
+	/* track for RLC config command */
+	u32 center_freq1;
 };
 
 struct iwl_mvm_time_event_data {
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index cd04f24dd7fa..baa1d8c597fa 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -530,6 +530,7 @@ static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
 	HCMD_NAME(UPDATE_MU_GROUPS_CMD),
 	HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
 	HCMD_NAME(STA_HE_CTXT_CMD),
+	HCMD_NAME(RLC_CONFIG_CMD),
 	HCMD_NAME(RFH_QUEUE_CONFIG_CMD),
 	HCMD_NAME(TLC_MNG_CONFIG_CMD),
 	HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD),
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c
index 035336a9e755..6feb2f664d2c 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c
@@ -157,8 +157,43 @@ static void iwl_mvm_phy_ctxt_cmd_data(struct iwl_mvm *mvm,
 	/* Set the channel info data */
 	iwl_mvm_set_chan_info_chandef(mvm, &cmd->ci, chandef);
 
-	iwl_mvm_phy_ctxt_set_rxchain(mvm, ctxt, &cmd->rxchain_info,
+	/* we only support RLC command version 2 */
+	if (iwl_fw_lookup_cmd_ver(mvm->fw, DATA_PATH_GROUP,
+				  RLC_CONFIG_CMD, 0) < 2)
+		iwl_mvm_phy_ctxt_set_rxchain(mvm, ctxt, &cmd->rxchain_info,
+					     chains_static, chains_dynamic);
+}
+
+static int iwl_mvm_phy_send_rlc(struct iwl_mvm *mvm,
+				struct iwl_mvm_phy_ctxt *ctxt,
+				u8 chains_static, u8 chains_dynamic)
+{
+	struct iwl_rlc_config_cmd cmd = {
+		.phy_id = cpu_to_le32(ctxt->id),
+	};
+
+	if (iwl_fw_lookup_cmd_ver(mvm->fw, DATA_PATH_GROUP,
+				  RLC_CONFIG_CMD, 0) < 2)
+		return 0;
+
+	BUILD_BUG_ON(IWL_RLC_CHAIN_INFO_DRIVER_FORCE !=
+		     PHY_RX_CHAIN_DRIVER_FORCE_MSK);
+	BUILD_BUG_ON(IWL_RLC_CHAIN_INFO_VALID !=
+		     PHY_RX_CHAIN_VALID_MSK);
+	BUILD_BUG_ON(IWL_RLC_CHAIN_INFO_FORCE !=
+		     PHY_RX_CHAIN_FORCE_SEL_MSK);
+	BUILD_BUG_ON(IWL_RLC_CHAIN_INFO_FORCE_MIMO !=
+		     PHY_RX_CHAIN_FORCE_MIMO_SEL_MSK);
+	BUILD_BUG_ON(IWL_RLC_CHAIN_INFO_COUNT != PHY_RX_CHAIN_CNT_MSK);
+	BUILD_BUG_ON(IWL_RLC_CHAIN_INFO_MIMO_COUNT !=
+		     PHY_RX_CHAIN_MIMO_CNT_MSK);
+
+	iwl_mvm_phy_ctxt_set_rxchain(mvm, ctxt, &cmd.rlc.rx_chain_info,
 				     chains_static, chains_dynamic);
+
+	return iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(RLC_CONFIG_CMD,
+						    DATA_PATH_GROUP, 2),
+				    0, sizeof(cmd), &cmd);
 }
 
 /*
@@ -211,9 +246,16 @@ static int iwl_mvm_phy_ctxt_apply(struct iwl_mvm *mvm,
 	}
 
 
-	if (ret)
+	if (ret) {
 		IWL_ERR(mvm, "PHY ctxt cmd error. ret=%d\n", ret);
-	return ret;
+		return ret;
+	}
+
+	if (action != FW_CTXT_ACTION_REMOVE)
+		return iwl_mvm_phy_send_rlc(mvm, ctxt, chains_static,
+					    chains_dynamic);
+
+	return 0;
 }
 
 /*
@@ -228,6 +270,8 @@ int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 	lockdep_assert_held(&mvm->mutex);
 
 	ctxt->channel = chandef->chan;
+	ctxt->width = chandef->width;
+	ctxt->center_freq1 = chandef->center_freq1;
 
 	return iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef,
 				      chains_static, chains_dynamic,
@@ -257,6 +301,14 @@ int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 
 	lockdep_assert_held(&mvm->mutex);
 
+	if (iwl_fw_lookup_cmd_ver(mvm->fw, DATA_PATH_GROUP,
+				  RLC_CONFIG_CMD, 0) >= 2 &&
+	    ctxt->channel == chandef->chan &&
+	    ctxt->width == chandef->width &&
+	    ctxt->center_freq1 == chandef->center_freq1)
+		return iwl_mvm_phy_send_rlc(mvm, ctxt, chains_static,
+					    chains_dynamic);
+
 	if (fw_has_capa(&mvm->fw->ucode_capa,
 			IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) &&
 	    ctxt->channel->band != chandef->chan->band) {
@@ -275,6 +327,8 @@ int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 
 	ctxt->channel = chandef->chan;
 	ctxt->width = chandef->width;
+	ctxt->center_freq1 = chandef->center_freq1;
+
 	return iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef,
 				      chains_static, chains_dynamic,
 				      action);