> > btw, the 3Com 3C985 and Netgear GA620 are the same nic. (See the the > > linux/drivers/net/acenic.c file for more details.) > > Hey, wait, I didn't think that anyone admitted that! > (The GA620 has been available for under $300, far less than other GB boards.) AFAIK the vendors are involved in contractual deals not to admit things like this. Of course anyone with two cards and a brain cell can spot the remarkable similarity. > A number of newer chips have Rx interrupt mitigation/coalescence e.g. the > Hamachi, Starfire and 21143-TD. Presumably the new Intel chips have > something undocumented (based on nebulous marketing claims). If the Intel chip is I2O they will have. Of course the intel board being I2O is probably something thats too bright an idea for chipzilla. > On related topices, the chip should also > - measure the interrupt latency, Why is this of interest ? > triggering underruns. > - Have variable Rx DMA thresholds, starting the Rx DMA early (predicting a > minimum-sized packet) when the Rx pipeline is empty. Or overlapping DMA's. Even in MCA bus days the 3c527 got amazing performance for its time because it fed one packet to the chip fifo as it pulled the next into the on card buffer space. Alan - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to [EMAIL PROTECTED]
