Javi Roman wrote: > ... > I think the driver requires PHY management (MDIO) to get my ethernet > working, and from the brand new rtnet-0.9.7 (rt_mpc8xx_fec.c): > > #ifdef CONFIG_RTAI_RTNET_USE_MDIO > #error "MDIO for PHY configuration is not yet supported!" > #endif
OK, that's something Wolfgang has to comment on. > > All MDIO stuff is under this macro. > I don't know why is not supported, nevertheless I'm going to work with > this issue. The original phy management here includes timed jobs that you don't want in a deterministic environment, therefore they have been switched off. Of course, this only makes sense when those jobs are not required to keep the link running. If they are needed to bring it up, a smart way to only do this during fec_enet_open has to be found. The golden rule is: Keep "comfort" functions out of the critical path. If you have high rate deterministic traffic, some link watchdog at a few HZ will choke far too late anyway. In this case, error detection can best be performed at higher levels. Jan
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