qcacmn: Add API to change Rx Fragment DST ring

Add API to change the Rx Fragment DST ring based on the SoC NSS
config
CRs-Fixed: 2175933

Change-Id: I2e3f0b82d301538f54d9790d55eeccdd0f6fa154

dp/wifi3.0/dp_main.c

@@ -1762,6 +1762,42 @@ static bool dp_reo_remap_config(struct dp_soc *soc,
 }
 #endif
 
+/*
+ * dp_reo_frag_dst_set() - configure reo register to set the
+ *                        fragment destination ring
+ * @soc : Datapath soc
+ * @frag_dst_ring : output parameter to set fragment destination ring
+ *
+ * Based on offload_radio below fragment destination rings is selected
+ * 0 - TCL
+ * 1 - SW1
+ * 2 - SW2
+ * 3 - SW3
+ * 4 - SW4
+ * 5 - Release
+ * 6 - FW
+ * 7 - alternate select
+ *
+ * return: void
+ */
+static void dp_reo_frag_dst_set(struct dp_soc *soc, uint8_t *frag_dst_ring)
+{
+	uint8_t offload_radio = wlan_cfg_get_dp_soc_nss_cfg(soc->wlan_cfg_ctx);
+
+	switch (offload_radio) {
+	case 0:
+		*frag_dst_ring = HAL_SRNG_REO_EXCEPTION;
+		break;
+	case 3:
+		*frag_dst_ring = HAL_SRNG_REO_ALTERNATE_SELECT;
+		break;
+	default:
+		QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
+				FL("dp_reo_frag_dst_set invalid offload radio config"));
+		break;
+	}
+}
+
 /*
  * dp_soc_cmn_setup() - Common SoC level initializion
  * @soc:		Datapath SOC handle
@@ -1973,6 +2009,11 @@ static int dp_soc_cmn_setup(struct dp_soc *soc)
 		wlan_cfg_get_defrag_timeout_check(soc->wlan_cfg_ctx);
 
 out:
+	/*
+	 * set the fragment destination ring
+	 */
+	dp_reo_frag_dst_set(soc, &reo_params.frag_dst_ring);
+
 	hal_reo_setup(soc->hal_soc, &reo_params);
 
 	qdf_atomic_set(&soc->cmn_init_done, 1);

hal/wifi3.0/hal_api.h

@@ -1003,12 +1003,16 @@ extern void hal_setup_link_idle_list(void *hal_soc,
 
 /* REO parameters to be passed to hal_reo_setup */
 struct hal_reo_params {
-	/* rx hash steering enabled or disabled */
+	/** rx hash steering enabled or disabled */
 	bool rx_hash_enabled;
-	/* reo remap 1 register */
+	/** reo remap 1 register */
 	uint32_t remap1;
-	/* reo remap 2 register */
+	/** reo remap 2 register */
 	uint32_t remap2;
+	/** fragment destination ring */
+	uint8_t frag_dst_ring;
+	/** padding */
+	uint8_t padding[3];
 };
 
 /**

hal/wifi3.0/hal_internal.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2017 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2018 The Linux Foundation. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -182,6 +182,7 @@ enum hal_srng_ring_id {
 };
 
 #define HAL_SRNG_REO_EXCEPTION HAL_SRNG_REO2SW1
+#define HAL_SRNG_REO_ALTERNATE_SELECT 0x7
 
 #define HAL_MAX_LMACS 3
 #define HAL_MAX_RINGS_PER_LMAC (HAL_SRNG_LMAC1_ID_END - HAL_SRNG_LMAC1_ID_START)

hal/wifi3.0/hal_rx.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2017 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2018 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -231,7 +231,7 @@ void hal_reo_setup(void *hal_soc,
 	HAL_REG_WRITE(soc, HWIO_REO_R0_GENERAL_ENABLE_ADDR(
 		SEQ_WCSS_UMAC_REO_REG_OFFSET),
 		HAL_SM(HWIO_REO_R0_GENERAL_ENABLE,
-		FRAGMENT_DEST_RING, HAL_SRNG_REO_EXCEPTION) |
+		FRAGMENT_DEST_RING, reo_params->frag_dst_ring) |
 		HAL_SM(HWIO_REO_R0_GENERAL_ENABLE, AGING_LIST_ENABLE, 1) |
 		HAL_SM(HWIO_REO_R0_GENERAL_ENABLE, AGING_FLUSH_ENABLE, 1));
 	/* Other ring enable bits and REO_ENABLE will be set by FW */