qcacmn: bkpressure control time event

add debug prints and a custom timer for how long to wait to receive next
bk pressure event message.

Change-Id: I5a736b0f134cd179990de536da02967db3e39774
CRs-Fixed: 3273427

wlan_cfg/cfg_dp.h

@@ -90,6 +90,8 @@
 #define WLAN_CFG_IPA_UC_RX_IND_RING_COUNT 0
 #endif /* IPA_OFFLOAD */
 
+#define WLAN_CFG_TIME_CONTROL_BP 3000
+
 #if defined(WLAN_MAX_PDEVS) && (WLAN_MAX_PDEVS == 1)
 #define WLAN_CFG_PER_PDEV_RX_RING 0
 #define WLAN_CFG_PER_PDEV_LMAC_RING 0
@@ -162,6 +164,9 @@
 #define WLAN_CFG_TX_RING_SIZE_MIN 512
 #define WLAN_CFG_TX_RING_SIZE_MAX 0x80000
 
+#define WLAN_CFG_TIME_CONTROL_BP_MIN 3000
+#define WLAN_CFG_TIME_CONTROL_BP_MAX 1800000
+
 #define WLAN_CFG_TX_COMP_RING_SIZE_MIN 512
 #define WLAN_CFG_TX_COMP_RING_SIZE_MAX 0x80000
 
@@ -679,6 +684,13 @@
 		WLAN_CFG_PER_PDEV_LMAC_RING_MAX, \
 		WLAN_CFG_PER_PDEV_LMAC_RING, \
 		CFG_VALUE_OR_DEFAULT, "DP pdev LMAC ring")
+
+#define CFG_DP_TIME_CONTROL_BP \
+		CFG_INI_UINT("dp_time_control_bp", \
+		WLAN_CFG_TIME_CONTROL_BP_MIN,\
+		WLAN_CFG_TIME_CONTROL_BP_MAX,\
+		WLAN_CFG_TIME_CONTROL_BP,\
+		CFG_VALUE_OR_DEFAULT, "DP time control back pressure")
 /*
  * <ini>
  * dp_rx_pending_hl_threshold - High threshold of frame number to start
@@ -1719,6 +1731,7 @@
 		CFG(CFG_DP_TX_RING_SIZE) \
 		CFG(CFG_DP_NSS_COMP_RING_SIZE) \
 		CFG(CFG_DP_PDEV_LMAC_RING) \
+		CFG(CFG_DP_TIME_CONTROL_BP) \
 		CFG(CFG_DP_BASE_HW_MAC_ID) \
 		CFG(CFG_DP_RX_HASH) \
 		CFG(CFG_DP_TSO) \