* David Greenman-Lawrence <[EMAIL PROTECTED]> [020513 15:40] wrote: > >* David Greenman-Lawrence <[EMAIL PROTECTED]> [020513 13:10] wrote: > >> > >> The card doesn't drop the packet if the IP/TCP checksum is wrong. In my > >> tests, I did a software checksum on the supposedly bad packet, and found it > >> to be good every time. So it DMA's correctly, the checksum is just calculated > >> incorrectly by the hardware. > > > >Probably pretty obvious, but adding a flag "if bad hwsum, then try softsum" > >probably wouldn't be too hard. > > Not obvious at all. How do you know if a packet is good or bad without > always doing the software checksum?
I guess I incorrectly assumed that the card only had a problem with falsely marking packets as bad, and not marking bad ones as good. Sorry. -Alfred To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
