TDA4VM: In network transmission, can our chip receive broadcast data based on MAC address?MAC destination addresses are all 0xff

• This question is urgent, please reply as soon as possible

Hi

For CPSW9G, MAC broadcast and multicast packets are delivered To EthFw running on R5F core.

If client drivers need to receive the corresponding packets, copies of the packets have to be created in SW and fanned out to other cores.

Fan-out of broadcast traffic and multi-core multicast traffic is planned for SDK 8.1 

Regards

Sriram

Hello

Projects were blocking by this issue. SOP is 830.

8.1 is not a solution for SOP.

Please give us a solution/work around for delivery of SOP.

Thanks.

Hi,

Can you tell us if routing broadcast packets to A72 instead of R5F will solve your problem ? Currently the limitation is that broadcast frames can't be sent to both cores.

Regards

Vineet

Hi, 

I think it's ok, we could have a try on it. Could you please give us more details of this solution?

HI,

You mentioned "fan-out of broadcast traffic and multi-core multicast traffic".  Is there a specific implementation method for broadcasting packet fanned out to A72 core?  What transmission channel is used to reach the A72 core?  

Could you please introduce more details of this solution, thanks,

Hi Vineet:

Quickly sync with customer that those work around: NDK run's R5F forward all MAC is 0xFFFFFFFFFF package to A72 linux. Then linux filter those broadcast package maybe available for their user case.

Best Regards!

Han Tao

HI

Vineet Roy

Does the solution you mentioned also solve the problem that multicast is not supported? The two are solved together in the same problem.

thank you.

Hi,

To enable Broadcast on A72, check attached patches which are created on top of SDK 7.3.

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/791/0001_2D00_Adding_2D00_ndk.cfg_2D00_for_2D00_remote_2D00_switch_2D00_server.patch

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/791/0002_2D00_Adding_2D00_files_2D00_before_2D00_applying_2D00_patch.patch

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/791/0003_2D00_Static_2D00_Multicast_2D00_configuration_2D00_for_2D00_Linux.patch

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/791/0004_2D00_Patch_2D00_to_2D00_send_2D00_Bcast_2D00_packets_2D00_to_2D00_A72_2D00_and_2D00_disable_2D00_it_2D00_in.patch

Enabling multicast is similar, in fact that is already described in this FAQ which forms the basis of these patches.

Regards

Vineet

HI.

Thank you. We will verify the function as soon as possible

Hi,

HONGRUN ZHAO said:

Is this patch suitable for QNX and sdk 7.3

Yes, it should work since the patch is for Ethernet Firmware which is common

Regards

Vineet

HI

Vineet Roy

Broadcast and multicast issues have been resolved. Thank you very much for your help.