# EthAgent Version: rdkb-2022q3-dunfell Mxl Version ## EthAgent Start up Entry Point: plugin_main.c: `CosaEthernetCreate()` ### CosaEthernetInitialize - Assign callback function for lowlayer link event(Link Up/Down). ```c 379 obj.pGWP_act_EthWanLinkDown = EthWanLinkDown_callback; 380 obj.pGWP_act_EthWanLinkUP = EthWanLinkUp_callback; ``` - CosaDmlEthInit - CosaDmlEthPortInit - Initialize `gpstEthGIno[index]` from `/nvram/bbhm_cur_cfg.xml` #MxlModified - rdkb/meta-rdk-soc-mxl-urx/meta-urx-rdkbos-compat/recipes-ccsp/ccsp-eth-agent/files/eth_apis_dynamic_eth_names.patch - xml node --> `dmsb.ethagent.if.%d.Name` - TR181 node --> `Device.Ethernet.X_RDK_Interface.{i}.Name` - GetWan_InterfaceName(ifname) - Read `wanoe_ifname` from `ethWANPort` from `/nvram/syscfg.db`, port number mapping info is saved at `/etc/interface_map.cfg` #MxlModified - Locate at sdk/urx_rdkb_hal/hal-ethsw-urx/src/ccsp_hal_ethsw.c - You can check this value by `syscfg get ethWANPort` - CosaDmlEthSetPhyPathForWanManager(ifname) - Notify WanManager wanoe_ifname - CosaDmlEthPortGetCopyOfGlobalInfoForGivenIfName(ifname) - Get copy from gpstEthGInfo - `Device.Ethernet.X_RDK_Interface.{i}.` - CosaDmlEthGetLowerLayersInstanceInOtherAgent() - WanManager `Device.X_RDK_WanManager.CPEInterface.%d.Name` - Looking for the wanoe_ifname in `CPEInterface.{i}.Name` - `CPEIntreface.{i}.Name` is read from `dmsb.wanmanager.if.{i}.Name` in `/nvram/bbhm_cur_cfg.xml` - CosaDmlEthPortGetIndexFromIfName() - Get the index of wanoe_name in `Device.Ethernet.X_RDK_Interface.` - Set `Device.X_RDK_WanManager.CPEInterface.{i}.Phy.Path` by the index get from CosaDmlEthPortGetIndexFromIfName() - CosaDmlEthTriggerEventHandlerThread() - Monitor for the link status event and notify the other agents - Once received link event, envoke corresponding callback function, `EthWanLinkUp_callback()` - CcspHalEthSwInit() - Initialise ethsw-hal to get event notification from lower layer. - Used to monitor wanoe ifname Link status(dmesg) - If wanoe_ifname link up, queue event. - `sdk/urx_rdkb_hal/hal-ethsw-urx/src/ccsp_hal_ethsw.c` - When wanon_ifname link up, notify WanManager `Phy.Status` up and set `X_RDK_Interface.1.Status` up - `CosaDmlEthSetPhyStatusForWanManager(WanOEInterface, WANOE_IFACE_UP);` - `gpstEthGInfo[ifIndex].LinkStatus = ETH_LINK_STATUS_UP;` ### Recap | Name | Purpose | Initial Value <br/>comes From | | --------------------------------------------------- | ------------------------------------------------------- | ----------------------------- | | ethWanPort | Decide Wan Port | /nvram/syscfg.db | | Device.Ethernet.X_RDK_Itnerface. | TR181 nodes for EthAgent | CosaDmlEthPortInit() | | Device.Ethernet.X_RDK_Itnerface.{i}.Name | Lower Layer Ethernet Name, should map to driver | /nvram/bbhm_cru_cfg.xml | | Device.Ethernet.X_RDK_Itnerface.{i}.Status | Link Status used for EthAgent SM | CosaDmlEthPortInit() | | Device.X_RDK_WanManager.CPEInterface.{i}. | TR181 nodes for WanManager | /nvram/bbhm_cru_cfg.xml | | Device.X_RDK_WanManager.CPEInterface.{i}.Phy.Path | Ethernet.X_RDK_Interface.{i}. Later used by VlanManager | WanMgr_WanConfigInit() | | Device.X_RDK_WanManager.CPEInterface.{i}.Phy.Status | Link Status used for WanManager SM | WanMgr_WanConfigInit() | | | | | --- ## Upstream Event Device.Ethernet.X_RDK_Interface.{i}.Upstream Up Once EthAgent Receives event of Upstream UP, EthgAgent starts StateMachine to deal with Eth Link Status. ```ad-info Upstream Event will be send by WanManager when Wan interface is choosen. Refer to WanManager Policy. ``` cosa_ethernet_apis.c: `CosaDmlEthPortSetUpstream(&stSMPrivateInfo)` ### CosaDmlEthPortSetUpstream() Pass the Interface of which the Upstream flag is set to StateMachine. ```c //CosaDmlEthPortSetUpstream() 3013 gpstEthGInfo[IfIndex].Upstream = Upstream; 3014 snprintf(stSMPrivateInfo.Name, sizeof(stSMPrivateInfo.Name), "%s", gpstEthGInfo[IfIndex].Name); ... 3021 CosaEthManager_Start_StateMachine(&stSMPrivateInfo); //CosaEthManager_Start_StateMachine 102 memcpy(pstInfo, pstMPrivateInfo, sizeof(ETH_SM_PRIVATE_INFO)); ``` stGlobalInfo is from `memcpy(pGlobalInfo, &gpstEthGInfo[LineIndex], sizeof(COSA_DML_ETH_PORT_GLOBAL_CONFIG));` - CosaEthManager_Start_StateMachine - STATE_EXIT - If (TRUE == stGlobalInfo.Upstream), goto STATE_ETH_DISCONNECTED - STATE_ETH_DISCONNECTED - if ((ETH_LINK_STATUS_UP == stGlobalInfo.LinkStatus) && (ETH_WAN_DOWN == stGlobalInfo.WanStatus)) - WanStatus is set by VlanManager when Vlan Interface created. - Transition_EthPhyInterfaceUp - Goto `STATE_ETH_VALIDATING_LINK` - STATE_ETH_VALIDATING_LINK - Transition_EthWanLinkFound() - CosaDmlEthCreateEthLink() - Set `X_RDK_Ethernet.Link.{i}.Enable` Enable - Trigger VlanBridgingManager: `DmlCreateEthInterface` - VlanBridgingManager: `DmlCreateEthInterface` will set `WanStatus` Up - Set other settings regarding `X_RDK_Ethernet.Link.{i}.` - Name, Alias, BaseInterface, Lowerlayers - Goto `STATE_ETH_VLAN_CONFIGURING` - STATE_ETH_VLAN_CONFIGURING - if (ETH_WAN_UP == stGlobalInfo.WanStatus) - Transition_EthWanLinkUp() - Notify WanManager LinkStatus Up - CosaDmlEthSetWanLinkStatusForWanManager - Goto `STATE_ETH_WAN_LINK_UP` - STATE_ETH_WAN_LINK_UP - Monitor if there is any state changes: - if ((FALSE == stGlobalInfo.Upstream) \|| (ETH_WAN_DOWN == stGlobalInfo.WanStatus) \|| (ETH_LINK_STATUS_DOWN == stGlobalInfo.LinkStatus)) ### Recap #### EthAgent SM | Node | Purpose | Triggered by | Initial Value From | Maintainer | | ------------------------------------------------ | ---------------------------------------------------------------------------------------- | ------------ | ------------------ | ----------- | | Device.Ethernet.X_RDK_Itnerface.{i}.Upstream | Once the interface is choosen, upstream event will be send by WanManager | WanManager | | EthAgent | | Device.Ethernet.X_RDK_Itnerface.{i}.WanValidated | Always Ture when EthAgent init interfaces | | | EthAgent | | Device.Ethernet.X_RDK_Itnerface.{i}.Status | To present Interface LinkStatus | EthAgent | | EthAgent | | Device.Ethernet.X_RDK_Itnerface.{i}.WanStatus | When True, EthAgent SM will goto ETH_WAN_LINK_UP. Set by VlanManager | VlanManager | | EthAgent | | Device.X_RDK_Ethernet.Link.1. | Nodes For VlanManager | | | VlanManager | | Device.X_RDK_Ethernet.Link.1.Enable | When receving True Event, VlanManager start to create interface | EthAgent | | VlanManager | | Device.X_RDK_Ethernet.Link.1.LowerLayer | Once interface created, VLM will send WanStatus Up to EthAgent with LowerLayer interface | EthAgent | | VlanManager | | Device.X_RDK_Ethernet.Link.1.X_RDK_BaseInterface | | EthAgent | | VlanManager |
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RdkWanManager

Version: rdkb-2022q3-dunfell

12/25/2023
R-Bus

11/7/2023
RDKB on RPI4

SDK Source CodeDownload with an authenticated user of RDK Central1repo init -u https://code.rdkcentral.com/r/manifests -m rdkb-extsrc.xml -b rdkb-2023q2-dunfell2repo sync -j nproc --no-clone-bundle --no-tagsOr download the packaged SDK, which is temporarily placed in /opt/build_data/rdkb_rpi.tar.bz2 on the AMAROK server.Start to build imageBuild commands for raspberry 4B 64bit1MACHINE=raspberrypi4-64-rdk-broadband source meta-cmf-raspberrypi/setup-environment2bitbake rdk-generic-broadband-imageFix compiling errorsIf you encounter a building error about the /tmp/dhcp_relay.conf, you could comment out the following line and rebuild it again.1~/rdkb_rpi/build-raspberrypi4-64-rdk-broadband/tmp/work/aarch64-rdk-linux/opensync/git-r0/git/core//./src/lib/dhcp_relay/ut/unit.mk2…3#${Q} cp $< $@4…If the JAVA_HOME can not be detected, disable the package zilker that requires it.The zilker is included in the image because it is defined by the the following bbappend file, we could disable it by removing it from the RDEPENDS_packagegroup-rdk-oss-broadband_append variable.1~/rdkb_rpi/meta-cmf-raspberrypi/recipes-core/packagegroups/packagegroup-rdk-oss-broadband.bbappend2RDEPENDS_packagegroup-rdk-oss-broadband_append = " 3…4

10/31/2023
RDKB Notes

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10/31/2023
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