On Friday 09 June 2006 19:57, Martin, Tim wrote: > I'm using Linux 2.6.6 with the Motorola Computer Group patch for the > MVME6100 available at > > https://mcg.motorola.com/cfm/templates/swDetails.cfm?PageID=704&Software > ID=6&ProductID=202 > > and compiling with GCC from ELDK 3.1.1, although using the userspace > module utils (e.g. insmod) from ELDK 4.0.
> The patch includes support for the Marvel gigabit ethernet part on the > board (MV64360?) which works for non-jumbo ethernet frames, but doesn't > receive (or even generate errors) if I send jumbo-ethernet frames. I > haven't debugged this issue very long, but a cursory look through the > driver hints that jumbo frame support should be on (the port config > serial register PCSR has what I imagine to be okay bits). > > I'm ifconfiging the 2nd ethernet device with the command > ifconfig eth1 mtu 9000 192.168.1.1 > > I'm wondering if anyone else using an MVME6100 has gotten jumbo frame > support to work? I can say that the MV64x60 ethernet driver that got rolled into the mainline kernel around the 2.6.11/12 timeframe does support jumbo frames for send and receive. If that patch is anything like some patches I've seen for similar products (based on old Marvel/Galileo reference code), I'd say your best-off cherry-picking the HW-specific bits from the patch and trying to either forward-port/add from scratch the board support to something >= 2.6.12 and getting the improved MV64x60 support as a bonus, or backporting at least the newer MV ethernet driver. Not only is the newer one _much_ simpler and easier to read (like 3 or 4x shorter), but it would appear to work better as well. > Also, at what point did the Linux 2.6 kernel embedded PPC support start > working with GCC 4.x (e.g. GCC in ELDK 4.0). I'm getting compiler > errors when I use GCC 4.x with this version of the kernel. No problems here with 2.6.11 through 17-rc6 on gcc 4. - Brent
