[bouffalo lab] Add pbuf_ram support for lwip application and add bouffalo sdk submodule

.gitmodules

@@ -345,3 +345,8 @@
 	path = third_party/re2/src
 	url = https://github.com/google/re2.git
 	platforms = linux,darwin
+[submodule "third_party/bouffalolab/bouffalo_sdk"]
+	path = third_party/bouffalolab/bouffalo_sdk
+	url = git@github.com:bouffalolab/bouffalo_sdk_private.git
+	branch = master
+	platforms = bouffalo_sdk 

scripts/build/build/targets.py

@@ -731,6 +731,7 @@ def BuildBouffalolabTarget():
     target.AppendModifier('mot', use_matter_openthread=True).OnlyIfRe('-(thread)')
     target.AppendModifier('memmonitor', enable_heap_monitoring=True)
     target.AppendModifier('coredump', enable_debug_coredump=True)
+    target.AppendModifier('pbuf-pool', enable_lwip_pbuf_ram=False).OnlyIfRe('-(bl602dk)')
 
     return target
 

scripts/build/builders/bouffalolab.py

@@ -104,6 +104,7 @@ def __init__(self,
                  enable_littlefs: bool = False,
                  enable_pds: bool = False,
                  enable_debug_coredump: bool = False,
+                 enable_lwip_pbuf_ram: bool = True
                  ):
 
         if 'BL602' == module_type:
@@ -250,6 +251,9 @@ def __init__(self,
 
         self.argsOpt.append(f"chip_generate_link_map_file=true")
 
+        if enable_lwip_pbuf_ram:
+            self.argsOpt.append(f"enable_lwip_pbuf_ram=true")
+
         try:
             self.argsOpt.append('bouffalolab_sdk_root="%s"' % os.environ['BOUFFALOLAB_SDK_ROOT'])
         except KeyError as err:

scripts/build/testdata/all_targets_linux_x64.txt

@@ -1,7 +1,7 @@
 ameba-amebad-{all-clusters,all-clusters-minimal,light,light-switch,pigweed}
 asr-{asr582x,asr595x,asr550x}-{all-clusters,all-clusters-minimal,lighting,light-switch,lock,bridge,temperature-measurement,thermostat,ota-requestor,dishwasher,refrigerator}[-ota][-shell][-no_logging][-factory][-rotating_id][-rio]
 android-{arm,arm64,x86,x64,androidstudio-arm,androidstudio-arm64,androidstudio-x86,androidstudio-x64}-{chip-tool,chip-test,tv-server,tv-casting-app,java-matter-controller,kotlin-matter-controller,virtual-device-app}[-no-debug]
-bouffalolab-{bl602dk,bl616dk,bl704ldk,bl706dk,bl602-night-light,bl706-night-light,bl602-iot-matter-v1,xt-zb6-devkit}-{light,contact-sensor}-{ethernet,wifi,thread,thread-ftd,thread-mtd}-{easyflash,littlefs}[-shell][-mfd][-rotating_device_id][-rpc][-cdc][-mot][-memmonitor][-coredump]
+bouffalolab-{bl602dk,bl616dk,bl704ldk,bl706dk,bl602-night-light,bl706-night-light,bl602-iot-matter-v1,xt-zb6-devkit}-{light,contact-sensor}-{ethernet,wifi,thread,thread-ftd,thread-mtd}-{easyflash,littlefs}[-shell][-mfd][-rotating_device_id][-rpc][-cdc][-mot][-memmonitor][-coredump][-pbuf-pool]
 cc32xx-{lock,air-purifier}
 ti-cc13x4_26x4-{lighting,lock,pump,pump-controller}[-mtd][-ftd]
 cyw30739-{cyw30739b2_p5_evk_01,cyw30739b2_p5_evk_02,cyw30739b2_p5_evk_03,cyw930739m2evb_01,cyw930739m2evb_02}-{light,light-switch,lock,thermostat}

scripts/checkout_submodules.py

@@ -28,7 +28,6 @@
     'ameba',
     'android',
     'asr',
-    'bl602',
     'bouffalolab',
     'cc13xx_26xx',
     'cc32xx',
@@ -51,6 +50,7 @@
     'genio',
     'openiotsdk',
     'silabs_docker',
+    'bouffalo_sdk'
 ])
 
 Module = namedtuple('Module', 'name path platforms recursive')

src/system/SystemPacketBuffer.h

@@ -172,6 +172,8 @@ class DLL_EXPORT PacketBuffer : private pbuf
         return kMaxSizeWithoutReserve;
 #elif CHIP_SYSTEM_PACKETBUFFER_FROM_CHIP_HEAP
         return this->alloc_size;
+#elif CHIP_SYSTEM_CONFIG_PACKETBUFFER_LWIP_PBUF_RAM
+        return LWIP_MEM_ALIGN_SIZE(memp_sizes[this->pool]) - kStructureSize;
 #elif CHIP_SYSTEM_PACKETBUFFER_FROM_LWIP_CUSTOM_POOL
         // Temporary workaround for custom pbufs by assuming size to be PBUF_POOL_BUFSIZE
         if (this->flags & PBUF_FLAG_IS_CUSTOM)