TSE or SGDMA related problem with concurrent tx and rx

For the debug messages; I was more thinking about the tse_mac_raw_send() and tse_mac_rcv() functions in the driver.

I assumed too that the Altera drivers properly handle the data cache, I was just wondering if you were using a more "exotic" OS.

I just had a look at the driver, and from what I see, it requires uncached buffers. The Interniche stack is set up properly to use them, but if you directly call the raw_send() function, you need to use an uncached buffer. If you don't you'll run into cache problems one day. I haven't looked at the opencores driver but I guess it is the same thing.