ath10k: add new FW_FEATURE_PEER_FLOW_CONTROL

This feature flag will be used for firmware which
supports pull-push model where host shares it's
software queue state with firmware and firmware
generates fetch requests telling host which queues
to dequeue tx from.

Primary function of this is improved MU-MIMO
performance with multiple clients.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath10k/core.c

@@ -217,6 +217,7 @@ static const char *const ath10k_core_fw_feature_str[] = {
 	[ATH10K_FW_FEATURE_RAW_MODE_SUPPORT] = "raw-mode",
 	[ATH10K_FW_FEATURE_SUPPORTS_ADAPTIVE_CCA] = "adaptive-cca",
 	[ATH10K_FW_FEATURE_MFP_SUPPORT] = "mfp",
+	[ATH10K_FW_FEATURE_PEER_FLOW_CONTROL] = "peer-flow-ctrl",
 };
 
 static unsigned int ath10k_core_get_fw_feature_str(char *buf,

drivers/net/wireless/ath/ath10k/core.h

@@ -512,6 +512,15 @@ enum ath10k_fw_features {
 	/* Firmware supports management frame protection */
 	ATH10K_FW_FEATURE_MFP_SUPPORT = 12,
 
+	/* Firmware supports pull-push model where host shares it's software
+	 * queue state with firmware and firmware generates fetch requests
+	 * telling host which queues to dequeue tx from.
+	 *
+	 * Primary function of this is improved MU-MIMO performance with
+	 * multiple clients.
+	 */
+	ATH10K_FW_FEATURE_PEER_FLOW_CONTROL = 13,
+
 	/* keep last */
 	ATH10K_FW_FEATURE_COUNT,
 };