Thanks for the comments... I have hacked the IBM EMAC driver (Xenomai-2.3.0 Real Time Linux 2.6.19.2) and got jumbo frames to pass back and forth between two such embedded boards. Checked it using ping, iperf and httpd / wget file transfer with md5sum check.
Still have to clean things up a bit and do some more tests before I can share it as a patch. Regards, Darcy -----Original Message----- Sure, it can be done. The Xilinx 10/100 Ethernet drivers have jumbo frame support in MontaVista/WindRiver Linux. As long as both ends are talking jumbo frames, works just fine. -Rick -----Original Message----- We've done it for our 2.4 based kernel that runs on a Freescale MPC8270. 10/100/1000 doesn't really make any difference. For us the trick was to support receving jumbo frames in multiple RX BufDescriptors (because our MPC8270 FCC eth driver pre-allocates 2k buffers per RX BD). For transmitting hardly any changes were necessary. From linux (driver) standpoint there should be no problems, the question is whether your ethernet MAC (IBM EMAC) properly supports it. hth, N. van Bolhuis. _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
