I am presently developing Frame Relay support for the Interphase 4538 and 5339F boards.
The intent is to run Frame Realy over T1/E1. Originaly I tried to the FCC-2 channel in HDLC mode but was unable to read packets correctly. I could transmit a frame and it would receive on the other side but the AB bit in the BD status was on and I could not figure out how to fix the issue.There could be an issue with the QUAD-FALC, maybe an issue for single channel usage. QUAD-FALC appears on 1st channel of ATM by design. So, now I am programming the MCC units for HDLC mode. So far I have not been able to get transmit interrupts to fly but I am just starting to really debug this thing. I am using the generic HDLC protocol layer for this work. The question is, has anyone done anything similiar to what I am trying to accomplish here? Anything to help get this thing rolling would be great. All of the work I am doing is full GPL. So if support for the Interphase 4538, 5339F are desired I do have it working. In fact I have ATM running fine in AAL5 mode.Multiple phy support, 0-7 VPI, 0-255 VCI, 32 max channels.CBR, UBR, UBRPLUS, VBR, VBR_RT and ABR supported. The code is solid and has been running solid since 1st of the year. I have been busy with Frame Relay on the 4532 and 5339F but I am also porting the Interphase 4532 OC3 board as well. After Frame Relay is done I have IMA next. Greg ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
