2009-04-01 09:32:37 bfin_mac error message
Peter Gombos (HUNGARY)
We use the BF537 cpu, 2008R1.5RC3 distro, ADSP BF-537 EZ-KIT lite 2.1 board.
At first sight the eth0 works fine. I can ping it from my PC and can ping my PC from the board. But if I increase the size of ping messages (ping -s 512 a.b.c.d) then I got an error message:
"bfin_mac: wait for adjust tx list head timeout"
Unfortunatelly the eth0 hangs and not able to recover from this state.
If I remove the "Use L1 memory for tx/rx packets" option from the network driver (CONFIG_BFIN_MAC_USE_L1) then the message disappearing but some packets are lost. In this case the TCP connection (like BOA) works but wery slow.
I found this message in the file drivers/net/bfin_mac.c in function adjust_tx_list() It seems we don't get DMA irq within timeot (500 mSeconds). But how it is possible?
2009-04-01 10:12:19 Re: bfin_mac error message
Robin Getz (UNITED STATES)
Let me check it out - I can do 1 2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 without issues on trunk. I'll need to dig out an old release and check it there...