diff --git a/porting/examples/linux/include/syscfg/syscfg.h b/porting/examples/linux/include/syscfg/syscfg.h
index 31d3835a9..903163ad6 100644
--- a/porting/examples/linux/include/syscfg/syscfg.h
+++ b/porting/examples/linux/include/syscfg/syscfg.h
@@ -15,7 +15,6 @@
 #define MYNEWT_VAL(_name)                       MYNEWT_VAL_ ## _name
 #define MYNEWT_VAL_CHOICE(_name, _val)          MYNEWT_VAL_ ## _name ## __ ## _val
 
-/*** @apache-mynewt-core/crypto/tinycrypt */
 #ifndef MYNEWT_VAL_TINYCRYPT_SYSINIT_STAGE
 #define MYNEWT_VAL_TINYCRYPT_SYSINIT_STAGE (200)
 #endif
@@ -1008,103 +1007,98 @@
 #endif
 
 /*** @apache-mynewt-nimble/nimble/transport */
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_ACL_BUF_COUNT
-#define MYNEWT_VAL_BLE_ACL_BUF_COUNT (24)
+#undef MYNEWT_VAL_BLE_ACL_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_ACL_BUF_SIZE
+
+#undef MYNEWT_VAL_BLE_HCI_BRIDGE
+
+#undef MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE
+
+#undef MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_HCI_TRANSPORT
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT
+#define MYNEWT_VAL_BLE_TRANSPORT (1)
 #endif
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_ACL_BUF_SIZE
-#define MYNEWT_VAL_BLE_ACL_BUF_SIZE (255)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_COUNT (10)
 #endif
 
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE
-#define MYNEWT_VAL_BLE_HCI_BRIDGE (0)
+/* Value copied from BLE_TRANSPORT_ACL_COUNT */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_HS_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_HS_COUNT (10)
 #endif
 
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__dialog_cmac
-#define MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__dialog_cmac (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__nrf5340
-#define MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__nrf5340 (0)
-#endif
-#undef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT
-
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE
-#define MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE (70)
+/* Value copied from BLE_TRANSPORT_ACL_COUNT */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_LL_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_LL_COUNT (10)
 #endif
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT
-#define MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT (8)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_SIZE
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_SIZE (255)
 #endif
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT
-#define MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT (8)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_COUNT (4)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_DISCARDABLE_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_DISCARDABLE_COUNT (16)
+#endif
+
+/* Overridden by @apache-mynewt-nimble/nimble/transport (defined by @apache-mynewt-nimble/nimble/transport) */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_SIZE
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_SIZE (257)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__custom
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__custom (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__dialog_cmac
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__dialog_cmac (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__native
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__native (1)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__nrf5340
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__nrf5340 (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__uart
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__uart (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__usb
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__usb (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS
+#define MYNEWT_VAL_BLE_TRANSPORT_HS (1)
 #endif
 
 /* Overridden by @apache-mynewt-nimble/porting/targets/linux (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__builtin
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__builtin (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__custom
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__custom (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__custom
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__custom (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__dialog_cmac
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__dialog_cmac (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__da1469x
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__da1469x (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__native
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__native (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__dialog_cmac
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__dialog_cmac (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__nrf5340
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__nrf5340 (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__emspi
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__emspi (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__socket
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__socket (1)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__nrf5340
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__nrf5340 (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__ram
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__ram (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__socket
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__socket (1)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__uart
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__uart (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__usb
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__usb (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT (1)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_EMSPI
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_EMSPI (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_NIMBLE_BUILTIN
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_NIMBLE_BUILTIN (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_RAM
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_RAM (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_SOCKET
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_SOCKET (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_UART
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_UART (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL
+#define MYNEWT_VAL_BLE_TRANSPORT_LL (1)
 #endif
 
 /*** @apache-mynewt-nimble/nimble/transport/socket */
-#ifndef MYNEWT_VAL_BLE_HCI_ACL_OUT_COUNT
-#define MYNEWT_VAL_BLE_HCI_ACL_OUT_COUNT (12)
-#endif
-
 #ifndef MYNEWT_VAL_BLE_SOCK_CLI_SYSINIT_STAGE
 #define MYNEWT_VAL_BLE_SOCK_CLI_SYSINIT_STAGE (500)
 #endif
diff --git a/porting/examples/linux_blemesh/include/syscfg/syscfg.h b/porting/examples/linux_blemesh/include/syscfg/syscfg.h
index 976151a4e..550ce5398 100644
--- a/porting/examples/linux_blemesh/include/syscfg/syscfg.h
+++ b/porting/examples/linux_blemesh/include/syscfg/syscfg.h
@@ -15,7 +15,6 @@
 #define MYNEWT_VAL(_name)                       MYNEWT_VAL_ ## _name
 #define MYNEWT_VAL_CHOICE(_name, _val)          MYNEWT_VAL_ ## _name ## __ ## _val
 
-/*** @apache-mynewt-core/crypto/tinycrypt */
 #ifndef MYNEWT_VAL_TINYCRYPT_SYSINIT_STAGE
 #define MYNEWT_VAL_TINYCRYPT_SYSINIT_STAGE (200)
 #endif
@@ -1583,103 +1582,98 @@
 #endif
 
 /*** @apache-mynewt-nimble/nimble/transport */
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_ACL_BUF_COUNT
-#define MYNEWT_VAL_BLE_ACL_BUF_COUNT (24)
+#undef MYNEWT_VAL_BLE_ACL_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_ACL_BUF_SIZE
+
+#undef MYNEWT_VAL_BLE_HCI_BRIDGE
+
+#undef MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE
+
+#undef MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_HCI_TRANSPORT
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT
+#define MYNEWT_VAL_BLE_TRANSPORT (1)
 #endif
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_ACL_BUF_SIZE
-#define MYNEWT_VAL_BLE_ACL_BUF_SIZE (255)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_COUNT (10)
 #endif
 
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE
-#define MYNEWT_VAL_BLE_HCI_BRIDGE (0)
+/* Value copied from BLE_TRANSPORT_ACL_COUNT */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_HS_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_HS_COUNT (10)
 #endif
 
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__dialog_cmac
-#define MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__dialog_cmac (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__nrf5340
-#define MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__nrf5340 (0)
-#endif
-#undef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT
-
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE
-#define MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE (70)
+/* Value copied from BLE_TRANSPORT_ACL_COUNT */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_LL_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_LL_COUNT (10)
 #endif
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT
-#define MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT (8)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_SIZE
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_SIZE (255)
 #endif
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT
-#define MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT (8)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_COUNT (4)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_DISCARDABLE_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_DISCARDABLE_COUNT (16)
+#endif
+
+/* Overridden by @apache-mynewt-nimble/nimble/transport (defined by @apache-mynewt-nimble/nimble/transport) */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_SIZE
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_SIZE (257)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__custom
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__custom (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__dialog_cmac
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__dialog_cmac (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__native
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__native (1)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__nrf5340
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__nrf5340 (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__uart
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__uart (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__usb
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__usb (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS
+#define MYNEWT_VAL_BLE_TRANSPORT_HS (1)
 #endif
 
 /* Overridden by @apache-mynewt-nimble/porting/targets/linux_blemesh (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__builtin
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__builtin (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__custom
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__custom (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__custom
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__custom (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__dialog_cmac
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__dialog_cmac (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__da1469x
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__da1469x (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__native
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__native (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__dialog_cmac
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__dialog_cmac (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__nrf5340
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__nrf5340 (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__emspi
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__emspi (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__socket
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__socket (1)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__nrf5340
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__nrf5340 (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__ram
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__ram (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__socket
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__socket (1)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__uart
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__uart (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__usb
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__usb (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT (1)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_EMSPI
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_EMSPI (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_NIMBLE_BUILTIN
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_NIMBLE_BUILTIN (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_RAM
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_RAM (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_SOCKET
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_SOCKET (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_UART
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_UART (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL
+#define MYNEWT_VAL_BLE_TRANSPORT_LL (1)
 #endif
 
 /*** @apache-mynewt-nimble/nimble/transport/socket */
-#ifndef MYNEWT_VAL_BLE_HCI_ACL_OUT_COUNT
-#define MYNEWT_VAL_BLE_HCI_ACL_OUT_COUNT (12)
-#endif
-
 #ifndef MYNEWT_VAL_BLE_SOCK_CLI_SYSINIT_STAGE
 #define MYNEWT_VAL_BLE_SOCK_CLI_SYSINIT_STAGE (500)
 #endif
diff --git a/porting/examples/nuttx/include/syscfg/syscfg.h b/porting/examples/nuttx/include/syscfg/syscfg.h
index 9269e3a8b..11fa149d6 100644
--- a/porting/examples/nuttx/include/syscfg/syscfg.h
+++ b/porting/examples/nuttx/include/syscfg/syscfg.h
@@ -15,7 +15,6 @@
 #define MYNEWT_VAL(_name)                       MYNEWT_VAL_ ## _name
 #define MYNEWT_VAL_CHOICE(_name, _val)          MYNEWT_VAL_ ## _name ## __ ## _val
 
-/*** @apache-mynewt-core/crypto/tinycrypt */
 #ifndef MYNEWT_VAL_TINYCRYPT_SYSINIT_STAGE
 #define MYNEWT_VAL_TINYCRYPT_SYSINIT_STAGE (200)
 #endif
@@ -1010,103 +1009,98 @@
 #endif
 
 /*** @apache-mynewt-nimble/nimble/transport */
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_ACL_BUF_COUNT
-#define MYNEWT_VAL_BLE_ACL_BUF_COUNT (24)
+#undef MYNEWT_VAL_BLE_ACL_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_ACL_BUF_SIZE
+
+#undef MYNEWT_VAL_BLE_HCI_BRIDGE
+
+#undef MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE
+
+#undef MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_HCI_TRANSPORT
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT
+#define MYNEWT_VAL_BLE_TRANSPORT (1)
 #endif
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_ACL_BUF_SIZE
-#define MYNEWT_VAL_BLE_ACL_BUF_SIZE (255)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_COUNT (10)
 #endif
 
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE
-#define MYNEWT_VAL_BLE_HCI_BRIDGE (0)
+/* Value copied from BLE_TRANSPORT_ACL_COUNT */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_HS_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_HS_COUNT (10)
 #endif
 
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__dialog_cmac
-#define MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__dialog_cmac (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__nrf5340
-#define MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__nrf5340 (0)
-#endif
-#undef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT
-
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE
-#define MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE (70)
+/* Value copied from BLE_TRANSPORT_ACL_COUNT */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_LL_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_LL_COUNT (10)
 #endif
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT
-#define MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT (8)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_SIZE
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_SIZE (255)
 #endif
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT
-#define MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT (8)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_COUNT (4)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_DISCARDABLE_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_DISCARDABLE_COUNT (16)
+#endif
+
+/* Overridden by @apache-mynewt-nimble/nimble/transport (defined by @apache-mynewt-nimble/nimble/transport) */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_SIZE
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_SIZE (257)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__custom
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__custom (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__dialog_cmac
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__dialog_cmac (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__native
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__native (1)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__nrf5340
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__nrf5340 (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__uart
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__uart (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__usb
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__usb (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS
+#define MYNEWT_VAL_BLE_TRANSPORT_HS (1)
 #endif
 
 /* Overridden by @apache-mynewt-nimble/porting/targets/nuttx (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__builtin
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__builtin (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__custom
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__custom (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__custom
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__custom (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__dialog_cmac
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__dialog_cmac (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__da1469x
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__da1469x (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__native
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__native (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__dialog_cmac
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__dialog_cmac (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__nrf5340
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__nrf5340 (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__emspi
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__emspi (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__socket
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__socket (1)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__nrf5340
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__nrf5340 (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__ram
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__ram (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__socket
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__socket (1)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__uart
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__uart (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__usb
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__usb (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT (1)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_EMSPI
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_EMSPI (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_NIMBLE_BUILTIN
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_NIMBLE_BUILTIN (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_RAM
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_RAM (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_SOCKET
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_SOCKET (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_UART
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_UART (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL
+#define MYNEWT_VAL_BLE_TRANSPORT_LL (1)
 #endif
 
 /*** @apache-mynewt-nimble/nimble/transport/socket */
-#ifndef MYNEWT_VAL_BLE_HCI_ACL_OUT_COUNT
-#define MYNEWT_VAL_BLE_HCI_ACL_OUT_COUNT (12)
-#endif
-
 #ifndef MYNEWT_VAL_BLE_SOCK_CLI_SYSINIT_STAGE
 #define MYNEWT_VAL_BLE_SOCK_CLI_SYSINIT_STAGE (500)
 #endif
diff --git a/porting/nimble/Makefile.defs b/porting/nimble/Makefile.defs
index 78f73fbc9..ad458970f 100644
--- a/porting/nimble/Makefile.defs
+++ b/porting/nimble/Makefile.defs
@@ -38,6 +38,7 @@ NIMBLE_INCLUDE := \
 	$(NIMBLE_ROOT)/nimble/host/services/tps/include \
 	$(NIMBLE_ROOT)/nimble/host/store/ram/include \
 	$(NIMBLE_ROOT)/nimble/host/util/include \
+	$(NIMBLE_ROOT)/nimble/transport/include \
 	$(NIMBLE_ROOT)/porting/nimble/include \
 	$(NULL)
 
@@ -55,6 +56,7 @@ NIMBLE_SRC := \
 	$(filter-out $(NIMBLE_IGNORE), $(wildcard $(NIMBLE_ROOT)/nimble/host/services/lls/src/*.c)) \
 	$(filter-out $(NIMBLE_IGNORE), $(wildcard $(NIMBLE_ROOT)/nimble/host/services/tps/src/*.c)) \
 	$(filter-out $(NIMBLE_IGNORE), $(wildcard $(NIMBLE_ROOT)/nimble/host/store/ram/src/*.c)) \
+	$(filter-out $(NIMBLE_IGNORE), $(wildcard $(NIMBLE_ROOT)/nimble/transport/src/*.c)) \
 	$(NULL)
 
 ifneq (,$(NIMBLE_CFG_CONTROLLER))
diff --git a/porting/nimble/include/syscfg/syscfg.h b/porting/nimble/include/syscfg/syscfg.h
index 98c0775f0..55a7c8b32 100644
--- a/porting/nimble/include/syscfg/syscfg.h
+++ b/porting/nimble/include/syscfg/syscfg.h
@@ -15,7 +15,6 @@
 #define MYNEWT_VAL(_name)                       MYNEWT_VAL_ ## _name
 #define MYNEWT_VAL_CHOICE(_name, _val)          MYNEWT_VAL_ ## _name ## __ ## _val
 
-/*** @apache-mynewt-core/crypto/tinycrypt */
 #ifndef MYNEWT_VAL_TINYCRYPT_SYSINIT_STAGE
 #define MYNEWT_VAL_TINYCRYPT_SYSINIT_STAGE (200)
 #endif
@@ -1007,103 +1006,98 @@
 #endif
 
 /*** @apache-mynewt-nimble/nimble/transport */
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_ACL_BUF_COUNT
-#define MYNEWT_VAL_BLE_ACL_BUF_COUNT (24)
+#undef MYNEWT_VAL_BLE_ACL_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_ACL_BUF_SIZE
+
+#undef MYNEWT_VAL_BLE_HCI_BRIDGE
+
+#undef MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE
+
+#undef MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_HCI_TRANSPORT
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT
+#define MYNEWT_VAL_BLE_TRANSPORT (1)
 #endif
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_ACL_BUF_SIZE
-#define MYNEWT_VAL_BLE_ACL_BUF_SIZE (255)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_COUNT (10)
 #endif
 
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE
-#define MYNEWT_VAL_BLE_HCI_BRIDGE (0)
+/* Value copied from BLE_TRANSPORT_ACL_COUNT */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_HS_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_HS_COUNT (10)
 #endif
 
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__dialog_cmac
-#define MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__dialog_cmac (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__nrf5340
-#define MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__nrf5340 (0)
-#endif
-#undef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT
-
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE
-#define MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE (70)
+/* Value copied from BLE_TRANSPORT_ACL_COUNT */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_LL_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_LL_COUNT (10)
 #endif
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT
-#define MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT (8)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_SIZE
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_SIZE (255)
 #endif
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/socket (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT
-#define MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT (8)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_COUNT (4)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_DISCARDABLE_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_DISCARDABLE_COUNT (16)
+#endif
+
+/* Overridden by @apache-mynewt-nimble/nimble/transport (defined by @apache-mynewt-nimble/nimble/transport) */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_SIZE
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_SIZE (257)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__custom
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__custom (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__dialog_cmac
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__dialog_cmac (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__native
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__native (1)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__nrf5340
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__nrf5340 (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__uart
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__uart (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__usb
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__usb (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS
+#define MYNEWT_VAL_BLE_TRANSPORT_HS (1)
 #endif
 
 /* Overridden by @apache-mynewt-nimble/porting/targets/porting_default (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__builtin
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__builtin (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__custom
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__custom (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__custom
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__custom (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__dialog_cmac
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__dialog_cmac (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__da1469x
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__da1469x (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__native
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__native (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__dialog_cmac
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__dialog_cmac (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__nrf5340
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__nrf5340 (0)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__emspi
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__emspi (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__socket
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__socket (1)
 #endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__nrf5340
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__nrf5340 (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__ram
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__ram (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__socket
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__socket (1)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__uart
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__uart (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__usb
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__usb (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT (1)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_EMSPI
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_EMSPI (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_NIMBLE_BUILTIN
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_NIMBLE_BUILTIN (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_RAM
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_RAM (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_SOCKET
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_SOCKET (0)
-#endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_UART
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_UART (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL
+#define MYNEWT_VAL_BLE_TRANSPORT_LL (1)
 #endif
 
 /*** @apache-mynewt-nimble/nimble/transport/socket */
-#ifndef MYNEWT_VAL_BLE_HCI_ACL_OUT_COUNT
-#define MYNEWT_VAL_BLE_HCI_ACL_OUT_COUNT (12)
-#endif
-
 #ifndef MYNEWT_VAL_BLE_SOCK_CLI_SYSINIT_STAGE
 #define MYNEWT_VAL_BLE_SOCK_CLI_SYSINIT_STAGE (500)
 #endif
diff --git a/porting/nimble/src/nimble_port.c b/porting/nimble/src/nimble_port.c
index d4824d0b3..2a81fd63f 100644
--- a/porting/nimble/src/nimble_port.c
+++ b/porting/nimble/src/nimble_port.c
@@ -40,8 +40,10 @@ nimble_port_init(void)
     /* Initialize the global memory pool */
     os_mempool_module_init();
     os_msys_init();
+    /* Initialize transport */
+    ble_transport_init();
     /* Initialize the host */
-    ble_hs_init();
+    ble_transport_hs_init();
 
 #if NIMBLE_CFG_CONTROLLER
     ble_hci_ram_init();
@@ -49,7 +51,7 @@ nimble_port_init(void)
     hal_timer_init(5, NULL);
     os_cputime_init(32768);
 #endif
-    ble_ll_init();
+    ble_transport_ll_init();
 #endif
 }
 
diff --git a/porting/npl/riot/include/syscfg/syscfg.h b/porting/npl/riot/include/syscfg/syscfg.h
index a581a6d11..d7493392f 100644
--- a/porting/npl/riot/include/syscfg/syscfg.h
+++ b/porting/npl/riot/include/syscfg/syscfg.h
@@ -15,7 +15,6 @@
 #define MYNEWT_VAL(_name)                       MYNEWT_VAL_ ## _name
 #define MYNEWT_VAL_CHOICE(_name, _val)          MYNEWT_VAL_ ## _name ## __ ## _val
 
-/*** @apache-mynewt-core/compiler/arm-none-eabi-m4 */
 #ifndef MYNEWT_VAL_HARDFLOAT
 #define MYNEWT_VAL_HARDFLOAT (0)
 #endif
@@ -109,6 +108,11 @@
 #define MYNEWT_VAL_MCU_BUS_DRIVER_I2C_USE_TWIM (0)
 #endif
 
+/* Overridden by @apache-mynewt-core/hw/bsp/nordic_pca10056 (defined by @apache-mynewt-core/hw/mcu/nordic/nrf52xxx) */
+#ifndef MYNEWT_VAL_MCU_COMMON_STARTUP
+#define MYNEWT_VAL_MCU_COMMON_STARTUP (1)
+#endif
+
 /* Overridden by @apache-mynewt-core/hw/bsp/nordic_pca10056 (defined by @apache-mynewt-core/hw/mcu/nordic/nrf52xxx) */
 #ifndef MYNEWT_VAL_MCU_DCDC_ENABLED
 #define MYNEWT_VAL_MCU_DCDC_ENABLED (1)
@@ -951,8 +955,12 @@
 #define MYNEWT_VAL_BLE_LL_CFG_FEAT_LL_SCA_UPDATE (0)
 #endif
 
+#ifndef MYNEWT_VAL_BLE_LL_CFG_FEAT_PERIPH_INIT_FEAT_XCHG
+#define MYNEWT_VAL_BLE_LL_CFG_FEAT_PERIPH_INIT_FEAT_XCHG (MYNEWT_VAL_BLE_LL_ROLE_CENTRAL || MYNEWT_VAL_BLE_LL_ROLE_PERIPHERAL)
+#endif
+
 #ifndef MYNEWT_VAL_BLE_LL_CFG_FEAT_SLAVE_INIT_FEAT_XCHG
-#define MYNEWT_VAL_BLE_LL_CFG_FEAT_SLAVE_INIT_FEAT_XCHG (MYNEWT_VAL_BLE_LL_ROLE_CENTRAL || MYNEWT_VAL_BLE_LL_ROLE_PERIPHERAL)
+#define MYNEWT_VAL_BLE_LL_CFG_FEAT_SLAVE_INIT_FEAT_XCHG (0)
 #endif
 
 /* Overridden by @apache-mynewt-nimble/porting/targets/riot (defined by @apache-mynewt-nimble/nimble/controller) */
@@ -968,6 +976,34 @@
 #define MYNEWT_VAL_BLE_LL_CONN_INIT_SLOTS (4)
 #endif
 
+#ifndef MYNEWT_VAL_BLE_LL_CONN_PHY_DEFAULT_PREF_MASK
+#define MYNEWT_VAL_BLE_LL_CONN_PHY_DEFAULT_PREF_MASK (0x07)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_LL_CONN_PHY_INIT_UPDATE
+#define MYNEWT_VAL_BLE_LL_CONN_PHY_INIT_UPDATE (0)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_LL_CONN_PHY_PREFER_2M
+#define MYNEWT_VAL_BLE_LL_CONN_PHY_PREFER_2M (0)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_LL_CONN_STRICT_SCHED
+#define MYNEWT_VAL_BLE_LL_CONN_STRICT_SCHED (0)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_LL_CONN_STRICT_SCHED_FIXED
+#define MYNEWT_VAL_BLE_LL_CONN_STRICT_SCHED_FIXED (0)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_LL_CONN_STRICT_SCHED_PERIOD_SLOTS
+#define MYNEWT_VAL_BLE_LL_CONN_STRICT_SCHED_PERIOD_SLOTS (8)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_LL_CONN_STRICT_SCHED_SLOT_US
+#define MYNEWT_VAL_BLE_LL_CONN_STRICT_SCHED_SLOT_US (3750)
+#endif
+
 #ifndef MYNEWT_VAL_BLE_LL_DEBUG_GPIO_HCI_CMD
 #define MYNEWT_VAL_BLE_LL_DEBUG_GPIO_HCI_CMD (-1)
 #endif
@@ -1005,6 +1041,10 @@
 #define MYNEWT_VAL_BLE_LL_EXT_ADV_AUX_PTR_CNT (0)
 #endif
 
+#ifndef MYNEWT_VAL_BLE_LL_HBD_FAKE_DUAL_MODE
+#define MYNEWT_VAL_BLE_LL_HBD_FAKE_DUAL_MODE (0)
+#endif
+
 #ifndef MYNEWT_VAL_BLE_LL_HCI_LLCP_TRACE
 #define MYNEWT_VAL_BLE_LL_HCI_LLCP_TRACE (0)
 #endif
@@ -1014,6 +1054,10 @@
 #define MYNEWT_VAL_BLE_LL_HCI_VS (1)
 #endif
 
+#ifndef MYNEWT_VAL_BLE_LL_HCI_VS_CONN_STRICT_SCHED
+#define MYNEWT_VAL_BLE_LL_HCI_VS_CONN_STRICT_SCHED (0)
+#endif
+
 /* Value copied from BLE_LL_VND_EVENT_ON_ASSERT */
 #ifndef MYNEWT_VAL_BLE_LL_HCI_VS_EVENT_ON_ASSERT
 #define MYNEWT_VAL_BLE_LL_HCI_VS_EVENT_ON_ASSERT (0)
@@ -1109,8 +1153,9 @@
 #define MYNEWT_VAL_BLE_LL_SCA (60)
 #endif
 
+/* Value copied from BLE_LL_EXT_ADV_AUX_PTR_CNT */
 #ifndef MYNEWT_VAL_BLE_LL_SCAN_AUX_SEGMENT_CNT
-#define MYNEWT_VAL_BLE_LL_SCAN_AUX_SEGMENT_CNT (8)
+#define MYNEWT_VAL_BLE_LL_SCAN_AUX_SEGMENT_CNT (0)
 #endif
 
 #ifndef MYNEWT_VAL_BLE_LL_SCHED_AUX_CHAIN_MAFS_DELAY
@@ -1156,7 +1201,7 @@
 #endif
 
 #ifndef MYNEWT_VAL_BLE_LL_USECS_PER_PERIOD
-#define MYNEWT_VAL_BLE_LL_USECS_PER_PERIOD (3250)
+#define MYNEWT_VAL_BLE_LL_USECS_PER_PERIOD (0)
 #endif
 
 #ifndef MYNEWT_VAL_BLE_LL_VND_EVENT_ON_ASSERT
@@ -1606,101 +1651,96 @@
 #endif
 
 /*** @apache-mynewt-nimble/nimble/transport */
-/* Overridden by @apache-mynewt-nimble/porting/targets/riot (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_ACL_BUF_COUNT
-#define MYNEWT_VAL_BLE_ACL_BUF_COUNT (24)
-#endif
+#undef MYNEWT_VAL_BLE_ACL_BUF_COUNT
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/ram (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_ACL_BUF_SIZE
-#define MYNEWT_VAL_BLE_ACL_BUF_SIZE (65535)
-#endif
+#undef MYNEWT_VAL_BLE_ACL_BUF_SIZE
 
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE
-#define MYNEWT_VAL_BLE_HCI_BRIDGE (0)
-#endif
+#undef MYNEWT_VAL_BLE_HCI_BRIDGE
 
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__dialog_cmac
-#define MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__dialog_cmac (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__nrf5340
-#define MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT__nrf5340 (0)
-#endif
-#undef MYNEWT_VAL_BLE_HCI_BRIDGE_TRANSPORT
+#undef MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/ram (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE
-#define MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE (70)
+#undef MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT
+
+#undef MYNEWT_VAL_BLE_HCI_TRANSPORT
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT
+#define MYNEWT_VAL_BLE_TRANSPORT (1)
 #endif
 
 /* Overridden by @apache-mynewt-nimble/porting/targets/riot (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT
-#define MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT (2)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_COUNT (24)
 #endif
 
-/* Overridden by @apache-mynewt-nimble/nimble/transport/ram (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT
-#define MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT (8)
+/* Value copied from BLE_TRANSPORT_ACL_COUNT */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_HS_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_HS_COUNT (24)
+#endif
+
+/* Value copied from BLE_TRANSPORT_ACL_COUNT */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_LL_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_FROM_LL_COUNT (24)
+#endif
+
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_ACL_SIZE
+#define MYNEWT_VAL_BLE_TRANSPORT_ACL_SIZE (255)
 #endif
 
 /* Overridden by @apache-mynewt-nimble/porting/targets/riot (defined by @apache-mynewt-nimble/nimble/transport) */
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__builtin
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__builtin (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__custom
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__custom (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__da1469x
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__da1469x (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__dialog_cmac
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__dialog_cmac (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__emspi
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__emspi (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__nrf5340
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__nrf5340 (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__ram
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__ram (1)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__socket
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__socket (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__uart
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__uart (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT__usb
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT__usb (0)
-#endif
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT (1)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_COUNT (2)
 #endif
 
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_EMSPI
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_EMSPI (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_DISCARDABLE_COUNT
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_DISCARDABLE_COUNT (16)
 #endif
 
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_NIMBLE_BUILTIN
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_NIMBLE_BUILTIN (0)
+/* Overridden by @apache-mynewt-nimble/nimble/transport (defined by @apache-mynewt-nimble/nimble/transport) */
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_SIZE
+#define MYNEWT_VAL_BLE_TRANSPORT_EVT_SIZE (257)
 #endif
 
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_RAM
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_RAM (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__custom
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__custom (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__dialog_cmac
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__dialog_cmac (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__native
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__native (1)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__nrf5340
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__nrf5340 (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__uart
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__uart (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS__usb
+#define MYNEWT_VAL_BLE_TRANSPORT_HS__usb (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_HS
+#define MYNEWT_VAL_BLE_TRANSPORT_HS (1)
 #endif
 
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_SOCKET
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_SOCKET (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__custom
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__custom (0)
 #endif
-
-#ifndef MYNEWT_VAL_BLE_HCI_TRANSPORT_UART
-#define MYNEWT_VAL_BLE_HCI_TRANSPORT_UART (0)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__dialog_cmac
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__dialog_cmac (0)
 #endif
-
-/*** @apache-mynewt-nimble/nimble/transport/ram */
-#ifndef MYNEWT_VAL_BLE_TRANS_RAM_SYSINIT_STAGE
-#define MYNEWT_VAL_BLE_TRANS_RAM_SYSINIT_STAGE (100)
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__native
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__native (1)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__nrf5340
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__nrf5340 (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL__socket
+#define MYNEWT_VAL_BLE_TRANSPORT_LL__socket (0)
+#endif
+#ifndef MYNEWT_VAL_BLE_TRANSPORT_LL
+#define MYNEWT_VAL_BLE_TRANSPORT_LL (1)
 #endif
 
 /*** newt */
diff --git a/porting/targets/linux/syscfg.yml b/porting/targets/linux/syscfg.yml
index 5778ee7d4..e5faa6277 100644
--- a/porting/targets/linux/syscfg.yml
+++ b/porting/targets/linux/syscfg.yml
@@ -17,7 +17,7 @@
 #
 
 syscfg.vals:
-    BLE_HCI_TRANSPORT: socket
+    BLE_TRANSPORT_LL: socket
     BLE_SOCK_USE_TCP: 0
     BLE_SOCK_USE_LINUX_BLUE: 1
     BLE_SOCK_TASK_PRIO: 3
diff --git a/porting/targets/linux_blemesh/syscfg.yml b/porting/targets/linux_blemesh/syscfg.yml
index 5e644d462..b5e48f440 100644
--- a/porting/targets/linux_blemesh/syscfg.yml
+++ b/porting/targets/linux_blemesh/syscfg.yml
@@ -43,7 +43,7 @@ syscfg.vals:
     BLE_MESH_SETTINGS: 0
     CONFIG_NFFS: 0
 
-    BLE_HCI_TRANSPORT: socket
+    BLE_TRANSPORT_LL: socket
     BLE_SOCK_USE_TCP: 0
     BLE_SOCK_USE_LINUX_BLUE: 1
     BLE_SOCK_TASK_PRIO: 3
diff --git a/porting/targets/nuttx/syscfg.yml b/porting/targets/nuttx/syscfg.yml
index d2c6de7bb..98ec29bf3 100644
--- a/porting/targets/nuttx/syscfg.yml
+++ b/porting/targets/nuttx/syscfg.yml
@@ -17,7 +17,7 @@
 #
 
 syscfg.vals:
-    BLE_HCI_TRANSPORT: socket
+    BLE_TRANSPORT_LL: socket
     BLE_SOCK_USE_TCP: 0
     BLE_SOCK_USE_NUTTX: 1
     BLE_SOCK_TASK_PRIO: 3
diff --git a/porting/targets/porting_default/syscfg.yml b/porting/targets/porting_default/syscfg.yml
index 3ffd4c279..7c6db1ae6 100644
--- a/porting/targets/porting_default/syscfg.yml
+++ b/porting/targets/porting_default/syscfg.yml
@@ -1,4 +1,4 @@
 syscfg.vals:
-    BLE_HCI_TRANSPORT: socket
+    BLE_TRANSPORT_LL: socket
     BLE_SOCK_USE_TCP: 0
     BLE_SOCK_USE_LINUX_BLUE: 1
diff --git a/porting/targets/riot/syscfg.yml b/porting/targets/riot/syscfg.yml
index 1d6939c1b..380c219e1 100644
--- a/porting/targets/riot/syscfg.yml
+++ b/porting/targets/riot/syscfg.yml
@@ -17,9 +17,9 @@
 #
 
 syscfg.vals:
-    BLE_ACL_BUF_COUNT: 24
     BLE_HCI_VS: 1
-    BLE_HCI_EVT_HI_BUF_COUNT: 2
+    BLE_TRANSPORT_ACL_COUNT: 24
+    BLE_TRANSPORT_EVT_COUNT: 2
     BLE_HW_WHITELIST_ENABLE: 0
     BLE_LL_CFG_FEAT_DATA_LEN_EXT: 0
     BLE_LL_CFG_FEAT_LE_CSA2: 1
@@ -31,7 +31,6 @@ syscfg.vals:
     BLE_SM_LEGACY: 0
     BLE_SM_SC: 0
     BLE_MAX_PERIODIC_SYNCS: 0
-    BLE_HCI_TRANSPORT: ram
     MSYS_1_BLOCK_COUNT: 5
     MSYS_1_BLOCK_SIZE: 88
     MCU_LFCLK_SOURCE: LFXO