AM2432: Emac mode SWTICH is not working in SDK the example

Moonil Heo

Part Number: AM2432

Hi Expert,

When I checked the example code in SDK as a reference for our project feature, I found ICSS switch mode is supporting only one Enet Mac Port. But, according to SDK document, it should support 2 ports(ENET_MAC_PORT1, ENET_MAC_PORT2). Does it not support two ports yet?

The example is "examples\networking\lwip\enet_lwip_icssg\am243x-evm". In this example, EMAC Mode is "DUAL MAC" by default. I tried to change it to SWITCH Mode and set numMacPorts as 2 in the example code as below. FYI, when I changed EMAC Mode to SWITCH in syscfg, it didn't change any generated code in my compilation.

void EnetApp_getEnetInstInfo(Enet_Type *enetType,
                             uint32_t *instId,
                             Enet_MacPort macPortList[],
                             uint8_t *numMacPorts)
{
    *enetType = ENET_ICSSG_SWITCH;
    *instId   = 1;
    *numMacPorts = 2;
    macPortList[0] = ENET_MAC_PORT_1;
    macPortList[1] = ENET_MAC_PORT_2;
}

Please see the code below, Here, assert happened. "source\networking\enet\core\lwipif\src\v1\lwipifcb.c” in SDK.

Could you reproduce this at your end with enet_lwip_icssg using EMAC Mode = SWITCH and clarify the problem?

Regards,

Moonil

over 3 years ago

0 Prasad Jondhale over 3 years ago

TI__Mastermind 27743 points

Hi Moonil,

I believe you are using ICSSG example. I have assigned this thread to our Enet ICSSG expert. He should come back on this thread. Please drop a ping if you see no response.

Regards,

Prasad

0 mohanreddy over 3 years ago in reply to Prasad Jondhale

TI__Intellectual 1805 points

Hi Moonil,

Currently the enet icssg lwip example is based on DUAL-MAC use case and that too supported one port at a time(Currently hardcoded to ENET_MAC_PORT1 of ICSSG1).

To get the example to work in Switch mode, Apart from the Syscfg change and EnetApp_getEnetInstInfo change there were couple of other changes which need to be considered.

1) "test_enet.c" file changes

Use the required memory pool for switch mode:

//extern Icssg_FwPoolMem gEnetSoc_Icssg1_1_FwPoolMem[];

extern Icssg_FwPoolMem gEnetSoc_Icssg1_Swt_FwPoolMem[];

Icssg_FwPoolMem* EnetCb_getFwPoolMem(Enet_Type enetType, uint32_t instId)

{

EnetAppUtils_assert((ENET_ICSSG_SWITCH == enetType) && (1U == instId));

return ((Icssg_FwPoolMem*)&gEnetSoc_Icssg1_Swt_FwPoolMem);

}

Use below configurations in EnetApp_initLinkArgs() function:

#if 0

ethPort.enetType = ENET_ICSSG_DUALMAC;

ethPort.instId = 2;

ethPort.macPort = macPort;

#else

ethPort.enetType = ENET_ICSSG_SWITCH;

ethPort.instId = 1;

ethPort.macPort = macPort;

#endif

and

#if 0

phyCfg->phyAddr = CONFIG_ENET_ICSS0_PHY1_ADDR;

#else

if (macPort == ENET_MAC_PORT_1)

{

phyCfg->phyAddr = CONFIG_ENET_ICSS0_PHY1_ADDR;

}

else

{

phyCfg->phyAddr = CONFIG_ENET_ICSS0_PHY2_ADDR;

}

#endif

2) "<MCUSDK>\source\networking\enet\core\lwipif\src\V1\lwipifcb.c" File changes

Comment out the Assert line in "LwipApp_init()" function

/* Currently we only support one ICSSG port in NIMU */
//EnetAppUtils_assert(gLwipIfCbObj.numMacPorts == 1U);

Add else case like below for switch mode in LwipifEnetAppCb_getHandle() function.

if (ENET_ICSSG_DUALMAC == gLwipIfCbObj.enetType)
{
Enet_IoctlPrms prms;
IcssgMacPort_SetMacAddressInArgs inArgs;

  memset(&inArgs, 0, sizeof(inArgs));
  memcpy(&inArgs.macAddr[0U], &outArgs->rxInfo.macAddr[0U], sizeof(inArgs.macAddr));
  inArgs.macPort = gLwipIfCbObj.macPortList[0U];

  ENET_IOCTL_SET_IN_ARGS(&prms, &inArgs);
  status = Enet_ioctl(handleInfo.hEnet, coreId, ICSSG_MACPORT_IOCTL_SET_MACADDR, &prms);
  if (status != ENET_SOK)
  {
      EnetAppUtils_print("EnetAppUtils_addHostPortEntry() failed ICSSG_MACPORT_IOCTL_ADD_INTERFACE_MACADDR: %d\r\n",
      status);
  }
  EnetAppUtils_assert(status == ENET_SOK);
}
else
{
  Enet_IoctlPrms prms;
  Icssg_MacAddr addr; // FIXME Icssg_MacAddr type

  /* Set host port's MAC address */
  EnetUtils_copyMacAddr(&addr.macAddr[0U], &outArgs->rxInfo.macAddr[0U]);
  ENET_IOCTL_SET_IN_ARGS(&prms, &addr);

  status = Enet_ioctl(handleInfo.hEnet, coreId, ICSSG_HOSTPORT_IOCTL_SET_MACADDR, &prms);
  if (status != ENET_SOK)
  {
      EnetAppUtils_print("EnetAppUtils_addHostPortEntry() failed ICSSG_HOSTPORT_IOCTL_SET_MACADDR: %d\r\n",
      status);
  }
  EnetAppUtils_assert(status == ENET_SOK);
}

Also you can refer to "enet_layer2_icssg" example for switch based layer2 example. This example will be in Switch mode using 2 MAC ports.

Let us know if you face any issues.

Regards,

Mohan.

Arm-based microcontrollers

Arm-based microcontrollers forum

AM2432: Emac mode SWTICH is not working in SDK the example